[Kernel-packages] [Bug 1882039] [NEW] The thread level parallelism would be a bottleneck when searching for the shared pmd by using hugetlbfs

2020-06-04 Thread Gavin Guo
ification is only in replacing the write lock to a read one. And there is no modification inside the loop. The regression probability is low. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Gavin Guo (mimi0213kimo) Status: New ** Tags: sts -- You received this bug noti

[Kernel-packages] [Bug 1882039] Re: The thread level parallelism would be a bottleneck when searching for the shared pmd by using hugetlbfs

2020-06-04 Thread Gavin Guo
** Also affects: linux (Ubuntu Eoan) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New -- You received this bug notification because you

[Kernel-packages] [Bug 1775326] Re: The kernel NULL pointer dereference happens when accessing the task_struct by task_cpu() in function cpuacct_charge()

2018-06-21 Thread Gavin Guo
** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1775326 Title: The kernel NULL pointer dereference happ

[Kernel-packages] [Bug 1775326] [NEW] The kernel NULL pointer dereference happens when accessing the task_struct by task_cpu() in function cpuacct_charge()

2018-06-05 Thread Gavin Guo
d by the Qemu and cannot be reproduced. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Gavin Guo (mimi0213kimo) Status: Incomplete ** Tags: sts xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux

[Kernel-packages] [Bug 1775326] Re: The kernel NULL pointer dereference happens when accessing the task_struct by task_cpu() in function cpuacct_charge()

2018-06-05 Thread Gavin Guo
** Summary changed: - The kernel NULL pointer dereference happens when accessing the task by task_cpu() in function cpuacct_charge() + The kernel NULL pointer dereference happens when accessing the task_struct by task_cpu() in function cpuacct_charge() -- You received this bug notification bec

[Kernel-packages] [Bug 1771480] [NEW] WARNING: CPU: 28 PID: 34085 at /build/linux-90Gc2C/linux-3.13.0/net/core/dev.c:1433 dev_disable_lro+0x87/0x90()

2018-05-15 Thread Gavin Guo
Public bug reported: I have multiple instances of this dev_disable_lro error in kern.log. Also seeing this: systemd-udevd[1452]: timeout: killing 'bridge-network-interface' [2765] <4>May 1 22:56:42 xxx kernel: [ 404.520990] bonding: bond0: Warning: No 802.3ad response from the link partner for

[Kernel-packages] [Bug 1771480] Re: WARNING: CPU: 28 PID: 34085 at /build/linux-90Gc2C/linux-3.13.0/net/core/dev.c:1433 dev_disable_lro+0x87/0x90()

2018-05-15 Thread Gavin Guo
This occurred during the deployment of the DPDK compute. The DPDK was not deployed. The bond0 and bond1 configuration appears to have failed. ---8<--- Preliminary analysis: the LRO appears to be off after the kernel traces, despite the message. I am inquiring as to the nature of t

[Kernel-packages] [Bug 1771480] Re: WARNING: CPU: 28 PID: 34085 at /build/linux-90Gc2C/linux-3.13.0/net/core/dev.c:1433 dev_disable_lro+0x87/0x90()

2018-05-15 Thread Gavin Guo
** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1771480/+attachment/5140100/+files/kern.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1771480

[Kernel-packages] [Bug 1791286] [NEW] The VM hang happens because of pending interrupts not reinjected when migrating the VM several times

2018-09-07 Thread Gavin Guo
Public bug reported: VM hang because of pening interrups not reinjected. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Gavin Guo (mimi0213kimo) Status: Incomplete ** Tags: sts -- You received this bug notification because you are a member of Kernel Packages

[Kernel-packages] [Bug 1791286] Re: The VM hang happens because of pending interrupts not reinjected when migrating the VM several times

2018-09-07 Thread Gavin Guo
** Description changed: - VM hang because of pening interrups not reinjected. + [Impact] + + After the VM(Guest OS is Windows Server 2012R2) has been live-migrated + several times, the screen is blacked out or freeze when the VM is + connected via VNC. + + The Windows Guest OS Server has been in

[Kernel-packages] [Bug 1791286] Re: The VM hang happens because of pending interrupts not reinjected when migrating the VM several times

2018-10-09 Thread Gavin Guo
** Tags removed: verification-needed-trusty ** Tags added: verification-done-trusty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791286 Title: The VM hang happens because of pending i

[Kernel-packages] [Bug 1801878] Re: NULL pointer dereference at 0000000000000020 when access dst_orig->ops->family in function xfrm_lookup_with_ifid()

2018-11-26 Thread Gavin Guo
** Tags removed: verification-needed-bionic verification-needed-cosmic verification-needed-xenial ** Tags added: verification-done-bionic verification-done-cosmic verification-done-xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to l

[Kernel-packages] [Bug 1764956] Re: Guests using IBRS incur a large performance penalty

2018-11-29 Thread Gavin Guo
** Changed in: linux (Ubuntu Xenial) Assignee: Guilherme G. Piccoli (gpiccoli) => Gavin Guo (mimi0213kimo) ** Changed in: linux (Ubuntu) Assignee: Guilherme G. Piccoli (gpiccoli) => Gavin Guo (mimi0213kimo) -- You received this bug notification because you are a member of

[Kernel-packages] [Bug 1802021] Re: [Hyper-V] srcu: Lock srcu_data structure in srcu_gp_start()

2018-12-12 Thread Gavin Guo
Hi Joshua, I just reviewed the commit Joseph provided in the launchpad. It's the same as the two patches I backported. eb4c2382272a srcu: Lock srcu_data structure in srcu_gp_start() d633198088bd srcu: Prohibit call_srcu() use under raw spinlocks The commit id eb4c2382272a is the latest linux-nex

[Kernel-packages] [Bug 1801878] [NEW] NULL pointer dereference at 0000000000000020 when access dst_orig->ops->family in function xfrm_lookup_with_ifid()

2018-11-06 Thread Gavin Guo
Assignee: Gavin Guo (mimi0213kimo) Status: Incomplete ** Tags: bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1801878 Title: NULL pointer dereference at

[Kernel-packages] [Bug 1801878] Re: NULL pointer dereference at 0000000000000020 when access dst_orig->ops->family in function xfrm_lookup_with_ifid()

2018-11-06 Thread Gavin Guo
** Description changed: - [267265.140511] BUG: unable to handle kernel NULL pointer dereference at 0020 - [267265.144406] IP: xfrm_lookup+0x31/0x870 - [267265.146224] PGD 0 P4D 0 - [267265.147469] Oops: [#1] SMP PTI - [267265.149141] Modules linked in: xt_iprange xt_nat ipt_M

[Kernel-packages] [Bug 1882039] Re: The thread level parallelism would be a bottleneck when searching for the shared pmd by using hugetlbfs

2020-08-25 Thread Gavin Guo
** Tags removed: verification-needed-bionic verification-needed-focal ** Tags added: verification-done-bionic verification-done-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1882039

[Kernel-packages] [Bug 1882039] Re: The thread level parallelism would be a bottleneck when searching for the shared pmd by using hugetlbfs

2020-07-07 Thread Gavin Guo
** Tags removed: verification-needed-eoan ** Tags added: verification-done-eoan -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1882039 Title: The thread level parallelism would be a bott

[Kernel-packages] [Bug 1680513] Re: Migrating KSM page causes the VM lock up as the KSM page merging list is too large

2017-04-13 Thread Gavin Guo
** Description changed: + [Impact] After numad is enabled and there are several VMs running on the same host machine(host kernel version: 4.4.0-72-generic #93), the softlockup messages can be observed inside the VMs' dmesg. First, the crashdump was captured when the symptom was observed

[Kernel-packages] [Bug 1680513] Re: Migrating KSM page causes the VM lock up as the KSM page merging list is too large

2017-04-14 Thread Gavin Guo
** Description changed: [Impact] After numad is enabled and there are several VMs running on the same host machine(host kernel version: 4.4.0-72-generic #93), the softlockup messages can be observed inside the VMs' dmesg. First, the crashdump was captured when the symptom was observed

[Kernel-packages] [Bug 1680513] Re: Migrating KSM page causes the VM lock up as the KSM page merging list is too large

2017-04-18 Thread Gavin Guo
** Description changed: [Impact] After numad is enabled and there are several VMs running on the same host machine(host kernel version: 4.4.0-72-generic #93), the softlockup messages can be observed inside the VMs' dmesg. First, the crashdump was captured when the symptom was observed

[Kernel-packages] [Bug 1683982] Re: net/ipv4: original ingress device index set as the loopback interface.

2017-04-19 Thread Gavin Guo
@Joseph Salisbury, Yes, Jorge has identified the bug and will send out the SRU patches. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1683982 Title: net/ipv4: original ingress device i

[Kernel-packages] [Bug 1729256] Re: Invalid btree pointer causes the kernel NULL pointer dereference

2017-11-29 Thread Gavin Guo
** Tags removed: verification-needed-xenial verification-needed-zesty ** Tags added: verification-done-xenial verification-done-zesty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729256

[Kernel-packages] [Bug 1728489] Re: tar -x sometimes fails on overlayfs

2017-11-29 Thread Gavin Guo
** Tags removed: verification-needed-xenial verification-needed-zesty ** Tags added: verification-done-xenial verification-done-zesty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1728489

[Kernel-packages] [Bug 1730852] Re: Device hotplugging with MPT SAS cannot work for VMWare ESXi

2017-12-03 Thread Gavin Guo
** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1730852 Title: Device hotplugging with MPT SAS cannot w

[Kernel-packages] [Bug 1730852] Re: Device hotplugging with MPT SAS cannot work for VMWare ESXi

2017-12-03 Thread Gavin Guo
** Tags removed: verification-needed-artful verification-needed-zesty ** Tags added: verification-done-artful verification-done-zesty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1730852

[Kernel-packages] [Bug 1747896] Re: OOM and High CPU utilization in update_blocked_averages because of too many cfs_rqs in rq->leaf_cfs_rq_list

2018-03-23 Thread Gavin Guo
** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1747896 Title: OOM and High CPU utilization in update_b

[Kernel-packages] [Bug 1747896] [NEW] OOM and High CPU utilization in update_blocked_averages because of too many cfs_rqs in rq->leaf_cfs_rq_list

2018-02-07 Thread Gavin Guo
Importance: Undecided Assignee: Gavin Guo (mimi0213kimo) Status: Incomplete ** Tags: sts ** Attachment added: "flamegraph of the high CPU utilization symptom" https://bugs.launchpad.net/bugs/1747896/+attachment/5050575/+files/2018-01-31_07-38-45.perf.data.svg -- Y

[Kernel-packages] [Bug 1729256] [NEW] Invalid btree pointer causes the kernel NULL pointer dereference

2017-11-01 Thread Gavin Guo
to proceed. [Test] The patch has been tested. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Gavin Guo (mimi0213kimo) Status: New ** Tags: sts -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubu

[Kernel-packages] [Bug 1729256] Re: Invalid btree pointer causes the kernel NULL pointer dereference

2017-11-02 Thread Gavin Guo
** Description changed: [Impact] The frequent kernel errors can be see inside the XFS based OSD processes and it causes to crash and restart. BUG: unable to handle kernel NULL pointer dereference at 00a0 IP: [] xfs_da3_node_read+0x30/0xb0 [xfs] CPU: 8 PID: 2855031 Comm:

[Kernel-packages] [Bug 1730852] [NEW] Device hotplugging with MPT SAS cannot work for VMWare ESXi

2017-11-07 Thread Gavin Guo
failed to detect new drives from within a VMWare ESXi environment. [Test] The patch has been verified based on the Ubuntu kernel v4.4.0-97.120. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Gavin Guo (mimi0213kimo) Status: New ** Tags: sts -- You received this

[Kernel-packages] [Bug 1680513] Re: Migrating KSM page causes the VM lock up as the KSM page merging list is too large

2017-09-06 Thread Gavin Guo
** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1680513 Title: Migrating KSM page causes the VM lock up

[Kernel-packages] [Bug 1680513] Re: Migrating KSM page causes the VM lock up as the KSM page merging list is too large

2017-08-18 Thread Gavin Guo
** Tags removed: verification-needed-zesty ** Tags added: verification-done-zesty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1680513 Title: Migrating KSM page causes the VM lock up a

[Kernel-packages] [Bug 1680513] [NEW] Migrating KSM page causes the VM lock up as the KSM page merging list is too large

2017-04-06 Thread Gavin Guo
Public bug reported: After numad is enabled and there are several VMs running on the same host machine(host kernel version: 4.4.0-72-generic #93), the softlockup messages can be observed inside the VMs' dmesg. First, the crashdump was captured when the symptom was observed. At the first glance, i

[Kernel-packages] [Bug 1680513] Re: Migrating KSM page causes the VM lock up as the KSM page merging list is too large

2017-04-06 Thread Gavin Guo
** Description changed: After numad is enabled and there are several VMs running on the same - host machine, the softlockup messages can be observed inside the VMs' - dmesg. + host machine(host kernel version: 4.4.0-72-generic #93), the + softlockup messages can be observed inside the VMs' dmesg

[Kernel-packages] [Bug 1680513] Re: Migrating KSM page causes the VM lock up as the KSM page merging list is too large

2017-04-06 Thread Gavin Guo
** Changed in: linux (Ubuntu) Assignee: (unassigned) => Gavin Guo (mimi0213kimo) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1680513 Title: Migrating KSM page causes the VM l

[Kernel-packages] [Bug 1527643] Re: use after free of task_struct->numa_faults in task_numa_find_cpu

2016-03-11 Thread Gavin Guo
Reproducer for the bug. ** Attachment added: "kernel_panic_test.sh" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1527643/+attachment/4595998/+files/kernel_panic_test.sh -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in

[Kernel-packages] [Bug 1527643] Re: use after free of task_struct->numa_faults in task_numa_find_cpu

2016-03-11 Thread Gavin Guo
** Description changed: + [Impact] + + The use-after-free invalid read bug, which happens in really tricky case, + would use the numa_faults data already freed for the NUMA balance to make a + decision to migrate the exiting process. + + The bug was found by the Ubuntu-3.13.0-65 with KASan backp

[Kernel-packages] [Bug 1527643] Re: use after free of task_struct->numa_faults in task_numa_find_cpu

2016-03-11 Thread Gavin Guo
** Description changed: [Impact] - The use-after-free invalid read bug, which happens in really tricky case, - would use the numa_faults data already freed for the NUMA balance to make a - decision to migrate the exiting process. + The use-after-free invalid read bug, which happens in really

[Kernel-packages] [Bug 1527643] Re: use after free of task_struct->numa_faults in task_numa_find_cpu

2016-03-25 Thread Gavin Guo
** Tags removed: verification-needed-trusty verification-needed-vivid verification-needed-wily ** Tags added: verification-done-trusty verification-done-vivid verification-done-wily -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux i

[Kernel-packages] [Bug 1527643] [NEW] use after free of task_struct->numa_faults in task_numa_find_cpu

2015-12-18 Thread Gavin Guo
Public bug reported: == BUG: KASan: use after free in task_numa_find_cpu+0x64c/0x890 at addr 880dd393ecd8 Read of size 8 by task qemu-system-x86/3998900

[Kernel-packages] [Bug 1527643] Re: use after free of task_struct->numa_faults in task_numa_find_cpu

2015-12-18 Thread Gavin Guo
** Attachment added: "numa_faults_use_after_free.kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1527643/+attachment/4536904/+files/numa_faults_use_after_free.kern.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linu

[Kernel-packages] [Bug 1527643] Re: use after free of task_struct->numa_faults in task_numa_find_cpu

2015-12-18 Thread Gavin Guo
** Description changed: - kernel: [284190.877125] == - kernel: [284190.898773] BUG: KASan: use after free in task_numa_find_cpu+0x64c/0x890 at addr 880dd393ecd8 - kernel: [284190.920765] Read of size 8 by task qemu-system-x86/39

[Kernel-packages] [Bug 1527643] Re: use after free of task_struct->numa_faults in task_numa_find_cpu

2015-12-18 Thread Gavin Guo
** Description changed: == BUG: KASan: use after free in task_numa_find_cpu+0x64c/0x890 at addr 880dd393ecd8 Read of size 8 by task qemu-system-x86/3998900 =

[Kernel-packages] [Bug 1527643] Re: use after free of task_struct->numa_faults in task_numa_find_cpu

2015-12-18 Thread Gavin Guo
** Description changed: == BUG: KASan: use after free in task_numa_find_cpu+0x64c/0x890 at addr 880dd393ecd8 Read of size 8 by task qemu-system-x86/3998900 =

[Kernel-packages] [Bug 1403282] Re: General protection fault on c->freelist broken with Trusty Tahr

2015-12-18 Thread Gavin Guo
** Tags removed: cts ** Tags added: sts -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1403282 Title: General protection fault on c->freelist broken with Trusty Tahr Status in linux pac

[Kernel-packages] [Bug 1572562] Re: KASan: out of bounds access in isolate_migratepages_range

2016-05-15 Thread Gavin Guo
** Description changed: + [Impact] In the v3.13.0-76 kernel with KASan backported. The following error message could be observed during the kernel building stress test of the command[1]: "./parallel-73670.sh -r 2 -k 40" That means building 40 kernels in the same time with 2 rounds. Ba

[Kernel-packages] [Bug 1572562] Re: KASan: out of bounds access in isolate_migratepages_range

2016-05-15 Thread Gavin Guo
** Description changed: [Impact] In the v3.13.0-76 kernel with KASan backported. The following error message could be observed during the kernel building stress test of the command[1]: "./parallel-73670.sh -r 2 -k 40" That means building 40 kernels in the same time with 2 rounds. Ba

[Kernel-packages] [Bug 1572562] Re: KASan: out of bounds access in isolate_migratepages_range

2016-05-15 Thread Gavin Guo
** Description changed: [Impact] In the v3.13.0-76 kernel with KASan backported. The following error message could be observed during the kernel building stress test of the command[1]: "./parallel-73670.sh -r 2 -k 40" That means building 40 kernels in the same time with 2 rounds. Ba

[Kernel-packages] [Bug 1534054] [NEW] use-after-free found by KASAN in blk_mq_register_disk

2016-01-14 Thread Gavin Guo
Public bug reported: The error message can be observed in the dmesg when the guest VM booted with v3.13.0-65 with KASAN enabled. == BUG: KASan: use after free in blk_mq_register_disk+0x193/0x260 at addr 8801ec247400 Read of size

[Kernel-packages] [Bug 1534054] Re: use-after-free found by KASAN in blk_mq_register_disk

2016-01-14 Thread Gavin Guo
** Changed in: linux (Ubuntu) Assignee: (unassigned) => Gavin Guo (mimi0213kimo) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1534054 Title: use-after-free found by KASAN

[Kernel-packages] [Bug 1534054] Re: use-after-free found by KASAN in blk_mq_register_disk

2016-01-14 Thread Gavin Guo
** Description changed: We are trying to debug the kernel using KASAN and we found that when a VM is booting in our cloud, on the virtualised kernel, there is a use- after-free access that should not be there. The failing VM was running on a host with kernel 3.13.0-66-generic (trusty)

[Kernel-packages] [Bug 1572562] [NEW] KASan: out of bounds access in isolate_migratepages_range

2016-04-20 Thread Gavin Guo
Public bug reported: In the v3.13.0-76 kernel with KASan backported. The following error message could be observed during the kernel building stress test of the command: "./parallel-73670.sh -r 2 -k 40" That means building 40 kernels in the same time with 2 rounds. Bad access happens when we read

[Kernel-packages] [Bug 1572562] Re: KASan: out of bounds access in isolate_migratepages_range

2016-04-20 Thread Gavin Guo
The following 2 patches are the solution to the bug: 4d88e6f7d5ff mm/balloon_compaction: fix deflation when compaction is disabled d6d86c0a7f8d mm/balloon_compaction: redesign ballooned pages management Related upstream mailing list discussion: - mm: compaction: buffer overflow in isolate_migrate

[Kernel-packages] [Bug 1572562] Re: KASan: out of bounds access in isolate_migratepages_range

2016-04-20 Thread Gavin Guo
11 { 312 return ((1UL << (nr & (BITS_PER_LONG-1))) & 313 (addr[nr >> _BITOPS_LONG_SHIFT])) != 0; 314 } + + Reference: + [1]. http://kernel.ubuntu.com/git/gavinguo/stress-test.git/ ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Gav

[Kernel-packages] [Bug 1091125] Re: Unable to hotplug ExpressCard on 12.04.3

2014-02-13 Thread Gavin Guo
This bug can't be fixed in Raring. As the feature is also available in the 12.04.4, users can upgrade their kernel to use the feature. ** Changed in: linux-lts-raring (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Kernel Packages, which

[Kernel-packages] [Bug 1322409] Re: Usb 3.0 device is recognized as usb 2.0 device on usb 3.0 port if the port has been used by usb 3.0 device after booted

2014-08-19 Thread Gavin Guo
** Tags removed: verification-needed-trusty ** Tags added: verification-done-trusty ** Tags removed: verification-done-trusty ** Tags added: verification-done -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.l

[Kernel-packages] [Bug 1345895] Re: [Dell Inspiron 3541] USB3 stick speed drop to 480M after first use

2014-09-03 Thread Gavin Guo
** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1345895 Title: [Dell Inspiron 3541] USB3 stick speed drop to 480M af

[Kernel-packages] [Bug 1322409] Re: Usb 3.0 device is recognized as usb 2.0 device on usb 3.0 port if the port has been used by usb 3.0 device after booted

2014-09-03 Thread Gavin Guo
** Changed in: linux (Ubuntu) Status: In Progress => Fix Released ** Changed in: hwe-next Status: In Progress => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1

[Kernel-packages] [Bug 1403282] [NEW] CISCO UCSC-C220-M3S/UCSC-C220-M3S - general protection fault on c->freelist broken with Trusty Tahr

2014-12-16 Thread Gavin Guo
ffects: linux (Ubuntu) Importance: Undecided Assignee: Gavin Guo (mimi0213kimo) Status: In Progress ** Tags: cts trusty ** Attachment added: "dmesg.log" https://bugs.launchpad.net/bugs/1403282/+attachment/4282400/+files/dmesg.log ** Changed in: linux (Ubuntu) Assig

[Kernel-packages] [Bug 1322409] Re: Usb 3.0 device is recognized as usb 2.0 device on usb 3.0 port if the port has been used by usb 3.0 device after booted

2014-07-28 Thread Gavin Guo
** Changed in: linux (Ubuntu) Status: New => In Progress -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1322409 Title: Usb 3.0 device is recognized as usb 2.0 device on usb 3.0 po

[Kernel-packages] [Bug 1456952] [NEW] support the slub_debug boot option on specific object size

2015-05-20 Thread Gavin Guo
Public bug reported: The slub_debug=PU,kmalloc-xx cannot work because in the create_kmalloc_caches() the s->name is created after the create_kmalloc_cache() is called. The name is NULL in the create_kmalloc_cache() so the kmem_cache_flags() would not set the slub_debug flags to the s->flags. The

[Kernel-packages] [Bug 1456952] Re: support the slub_debug boot option on specific object size

2015-05-20 Thread Gavin Guo
[Test case] ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Gavin Guo (mimi0213kimo) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1456952 Title: support the slub_debug

[Kernel-packages] [Bug 1456952] Re: support the slub_debug boot option on specific object size

2015-05-20 Thread Gavin Guo
** Description changed: [Impact] slub_debug cannot work for specific kmem_cache size. e. g. slub_debug=PU,kmalloc-1024 The slub_debug is used to enable the debugging of use-after-free, poison overwritten, double free. And it also increases the up time of the server when the ab

[Kernel-packages] [Bug 1456952] Re: support the slub_debug boot option on specific object size

2015-05-22 Thread Gavin Guo
** Tags added: utopic vivid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1456952 Title: support the slub_debug boot option on specific object size Status in linux package in Ubuntu:

[Kernel-packages] [Bug 1439441] Re: Kernel provides incomplete audit information when an existing monitored file is modified

2015-04-20 Thread Gavin Guo
** Tags removed: verification-needed-trusty ** Tags added: verification-done-trusty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1439441 Title: Kernel provides incomplete audit informa

[Kernel-packages] [Bug 1439441] Re: Kernel provides incomplete audit information when an existing monitored file is modified

2015-04-20 Thread Gavin Guo
** Tags removed: verification-needed-utopic ** Tags added: verification-done-utopic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1439441 Title: Kernel provides incomplete audit informa

[Kernel-packages] [Bug 1439441] [NEW] Kernel provides incomplete audit information when an existing monitored file is modified

2015-04-01 Thread Gavin Guo
priority_boost = 3 disp_qos = lossless dispatcher = /sbin/audispd name_format = hostname space_left = 75 space_left_action = SYSLOG action_mail_acct = root admin_space_left = 50 admin_space_left_action = SYSLOG disk_full_action = SYSLOG disk_error_action = SYSLOG - sudo su - # echo "lalal

[Kernel-packages] [Bug 1439441] Re: Kernel provides incomplete audit information when an existing monitored file is modified

2015-04-02 Thread Gavin Guo
Test of the following kernel fail: linux-image-3.13.0-031300-generic_3.13.0-031300.201401192235_amd64.deb linux-image-3.13.0-24-generic linux-image-3.13.0-46-generic linux-image-3.15.0-031500-generic_3.15.0-031500.201406131105_amd64.deb linux-image-3.17.0-031700-generic_3.17.0-031700.201410060605_a

[Kernel-packages] [Bug 1598197] Re: deadlock on balloon deflation

2016-07-10 Thread Gavin Guo
** Changed in: linux (Ubuntu Trusty) Assignee: (unassigned) => Gavin Guo (mimi0213kimo) ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Gavin Guo (mimi0213kimo) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to li

[Kernel-packages] [Bug 1572562] Re: KASan: out of bounds access in isolate_migratepages_range

2016-06-17 Thread Gavin Guo
I tried to reproduce the bug with the following commands: "./parallel-73670.sh -r 2 -k 40" [1] The error messages cannot be found in the dmesg with the proposed kernel 3.13.0-89.136 with KASan backported[2]. Reference: [1]. http://kernel.ubuntu.com/git/gavinguo/stress-test.git/ [2]. http://ke

[Kernel-packages] [Bug 1572562] Re: KASan: out of bounds access in isolate_migratepages_range

2016-06-17 Thread Gavin Guo
stress test on the v3.13.0-89.136 with KASan backported. ** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1572562/+attachment/4685474/+files/kern.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1598197] Re: deadlock on balloon deflation

2016-07-25 Thread Gavin Guo
Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds (backported from commit d6d86c0a7f8ddc5b38cf089222cb1d9540762dc2) Signed-off-by: Gavin Guo Conflicts: mm/balloon_compaction.c mm/migrate.c Acked-by: Stefan Bader S

[Kernel-packages] [Bug 1154443] Re: HP Pavilion p6 - System freezes during suspend/resume

2013-08-20 Thread Gavin Guo
I've tested fglrx & fglrx-updates about 3 times and each 50 reps of suspending and resuming by fwts 2 times and manually 1 time. Both driver cannot pass these tests. I think the suspend & resume function support is buggy and need AMD's help. -- You received this bug notification because you are a

[Kernel-packages] [Bug 1153937] Re: HP Pavilion p6 - Card reader does not read SDHC cards

2013-08-02 Thread Gavin Guo
I've tested 4 kinds of SD card. The first is U1 16GB SDHC from Toshiba which fail to read. Secondly, class 10 SDHC 4GB from mushkin which is the most high speed one with 25MB/s. Thirdly, class 4 SDHC from SanDisk which has been measured 15MB/s. The last is U1 SDHC 8GB from SanDisk which has been me

[Kernel-packages] [Bug 1154443] Re: HP Pavilion p6 - System freezes during suspend/resume

2013-08-07 Thread Gavin Guo
I found that in the failure case, the bios was booting into the general booting process. While the success case, the kernel was booting into the resuming process. The failure one mentioned before can't be rebooted using the magic key and don't have any dmesg. However, the other one which booted int

[Kernel-packages] [Bug 1132640] Re: Asus K43BR will not boot installer kernel

2013-08-07 Thread Gavin Guo
After rechecking with Yung and we can't assure the exact time when the platform will be back. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1132640 Title: Asus K43BR will not boot insta

[Kernel-packages] [Bug 1154443] Re: HP Pavilion p6 - System freezes during suspend/resume

2013-08-11 Thread Gavin Guo
After testing the suspend-and-resume 30 times with saucy daily build kernel which used Radeon driver by default, it succeed. And I need to find out what's the difference between the 2 kernel. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1153937] Re: 1022:7806 [HP Pavilion p6-2120 Desktop PC] Card reader does not read SDHC cards

2013-08-12 Thread Gavin Guo
I've attached the dmidecode log for comparison if this platform is the same as the one Jeff Lane tested before. ** Attachment added: "dmidecode.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1153937/+attachment/3768940/+files/dmidecode.log -- You received this bug notification bec

[Kernel-packages] [Bug 1182296] Re: [Dell Precision T7600] System fails to resume from suspend

2013-07-19 Thread Gavin Guo
I think the suspend()/resume() callback function implementing in the driver is buggy. We need nVidia's help to debug these two functions. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1182

[Kernel-packages] [Bug 1091125] Re: [Dell M4700] Unable to hotplug ExpressCard 34

2013-07-21 Thread Gavin Guo
the configuration was already enabled in the commit f3ce39309d9416473ba79035267a42d4dac0a11d Author: Tim Gardner Date: Tue May 14 13:45:10 2013 -0600 UBUNTU: rebase to v3.10-rc1 Signed-off-by: Tim Gardner -CONFIG_HOTPLUG_PCI_ACPI=m +CONFIG_HOTPLUG_PCI_ACPI=y -- You received th

[Kernel-packages] [Bug 1197616] Re: Bluetooth sometimes does not work after resuming from suspend

2013-07-29 Thread Gavin Guo
I've installed the kernel mentioned before. It's weird that the bluetooth device is disappear in lsusb. Even when I reboot, then enter the old kernel 3.5.0-22, the problem still existed. I'll try to shutdown and calm down the machine then try it again. Because the battery is hard to remove. -- Yo

[Kernel-packages] [Bug 1197616] Re: Bluetooth sometimes does not work after resuming from suspend

2013-07-29 Thread Gavin Guo
I've tried to test again and it seems there are some problem with read error. u@u-Inspiron-3137:~$ dmesg | grep error [6.571775] usb 2-7: device descriptor read/8, error -110 [ 11.690873] usb 2-7: device descriptor read/8, error -110 [ 12.512528] EXT4-fs (sda3): re-mounted. Opts: errors=rem

[Kernel-packages] [Bug 1197616] Re: Bluetooth sometimes does not work after resuming from suspend

2013-07-30 Thread Gavin Guo
@Ming, I've used 3.5.0-22-generic and added your patch with the command "fwts s3 --s3-multiple=10 --s3-max-delay=5 --s3-min-delay=5" tried 3 times. It seems the bug is fixed with your patch. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to

[Kernel-packages] [Bug 1034197] Re: Out of memory error when running min_free_kbytes testcase on precise-updates on armadaxp

2013-07-30 Thread Gavin Guo
** Changed in: linux-armadaxp (Ubuntu) Assignee: Gavin Guo (mimi0213kimo) => (unassigned) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-armadaxp in Ubuntu. https://bugs.launchpad.net/bugs/1034197 Title: Out of memory er

[Kernel-packages] [Bug 1132640] Re: Asus K43BR will not boot installer kernel

2013-07-30 Thread Gavin Guo
I have checked with certification team, as Some of the ASUS platforms have been call back and also spend some time to find in the lab. There is no K43BR in Taipei office. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. htt

[Kernel-packages] [Bug 1229576] Re: Webcam preview have half image display and black screen in some resolutions

2013-10-31 Thread Gavin Guo
** Tags removed: verification-needed-quantal ** Tags added: verification-done-quantal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1229576 Title: Webcam preview have half image display

[Kernel-packages] [Bug 1229576] [NEW] Webcam preview have half image display and black screen in some resolutions

2013-09-24 Thread Gavin Guo
tu) Importance: High Assignee: Gavin Guo (mimi0213kimo) Status: Confirmed ** Tags: blocks-hwcert-enablement -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1229576 Title: Webca

[Kernel-packages] [Bug 1229576] Re: Webcam preview have half image display and black screen in some resolutions

2013-09-24 Thread Gavin Guo
** Also affects: linux-lts-quantal (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1229576 Title: Webcam preview have half image displ

[Kernel-packages] [Bug 1229576] Re: Webcam preview have half image display and black screen in some resolutions

2013-09-24 Thread Gavin Guo
** No longer affects: linux-lts-quantal (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1229576 Title: Webcam preview have half image display and black screen in some resolutio

[Kernel-packages] [Bug 1229576] Re: Webcam preview have half image display and black screen in some resolutions

2013-11-26 Thread Gavin Guo
** Changed in: hwe-next Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1229576 Title: Webcam preview have half image display and black screen in

[Kernel-packages] [Bug 1456952] Re: support the slub_debug boot option on specific object size

2015-07-09 Thread Gavin Guo
** Tags removed: verification-needed-vivid ** Tags added: verification-done-vivid ** Tags removed: verification-needed-utopic ** Tags added: verification-done-utopic ** Tags removed: verification-needed-trusty ** Tags added: verification-done-trusty -- You received this bug notification because

[Kernel-packages] [Bug 1432848] Re: ethtool -t ethX failing with Ubuntu 15.04 (3.19.0-8-generic) (Mellanox)

2015-07-09 Thread Gavin Guo
Hi Clsoto, Tinoco is on vacation now, I'm his proxy. And I saw you have tested the kernel to verify the ethtool. Really thanks for your effort to do that. Except on thing that I saw the kernel version Linux powerio-le13 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:13 UTC 2015 ppc64le ppc64le

[Kernel-packages] [Bug 1432848] Re: ethtool -t ethX failing with Ubuntu 15.04 (3.19.0-8-generic) (Mellanox)

2015-07-10 Thread Gavin Guo
@Kamal, Thanks for your verification. I'll modify the tag verification-needed- vivid to verification-done-vivid. ** Tags removed: verification-needed-vivid ** Tags added: verification-done-vivid -- You received this bug notification because you are a member of Kernel Packages, which is subscrib

[Kernel-packages] [Bug 1475204] [NEW] Fix kmalloc slab creation sequence

2015-07-16 Thread Gavin Guo
nd 64-bit x86 if you have CONFIG_SLAB enabled. When I switched to CONFIG_SLUB, the kernel boots. So it appears this commit is breaking kernel configurations with CONFIG_SLAB enabled. It bisects down to: commit 4066c33d0308f87e9a3b0c7fafb9141c0bfbfa77 Author: Gavin Guo Date: Wed Jun 24 16:55:54

[Kernel-packages] [Bug 1475204] Re: Fix kmalloc slab creation sequence

2015-07-16 Thread Gavin Guo
[a...@linux-foundation.org: s/kmalloc_names/kmalloc_info/, tweak comment text] Signed-off-by: Gavin Guo Acked-by: Christoph Lameter Cc: Pekka Enberg Cc: David Rientjes Cc: Joonsoo Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[Kernel-packages] [Bug 1475204] Re: Fix kmalloc slab creation sequence

2015-07-20 Thread Gavin Guo
** Changed in: linux (Ubuntu) Assignee: (unassigned) => Gavin Guo (mimi0213kimo) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1475204 Title: Fix kmalloc slab creation seque

[Kernel-packages] [Bug 1475204] Re: Fix kmalloc slab creation sequence

2015-07-20 Thread Gavin Guo
[a...@linux-foundation.org: s/kmalloc_names/kmalloc_info/, tweak comment text] Signed-off-by: Gavin Guo Acked-by: Christoph Lameter Cc: Pekka Enberg Cc: David Rientjes Cc: Joonsoo Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[Kernel-packages] [Bug 1403282] Re: General protection fault on c->freelist broken with Trusty Tahr

2015-10-29 Thread Gavin Guo
Currently, the bug cannot be reproduced in the original platform. However, there is another platform has similar symptom. And the bug can be captured by Kasan(Kernel Address Sanitizer) backported on the v3.13.0-52.86. The source code: http://kernel.ubuntu.com/git/gavinguo/ubuntu-trusty-amd64.git/l

[Kernel-packages] [Bug 1403282] Re: General protection fault on c->freelist broken with Trusty Tahr

2015-10-29 Thread Gavin Guo
** Attachment added: "awk.kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403282/+attachment/4508426/+files/awk.kern.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1

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