[Kernel-packages] [Bug 2014953] [NEW] kernel_selftest: devlink_port_split.py mlx5_core warning triggers a failure

2023-04-01 Thread Andrea Righi
Public bug reported: The devlink command seems to print a warning that is considered as a failure during this test: 435612:18:20 DEBUG| Running 'make run_tests -C net TEST_PROGS=devlink_port_split.py TEST_GEN_PROGS='' TEST_CUSTOM_PROGS=''' 14357 12:18:20 DEBUG| [std

[Kernel-packages] [Bug 2015741] Re: efivarfs:efivarfs.sh in ubuntu_kernel_selftests crash L-6.2 ARM64 node dazzle (rcu_preempt detected stalls)

2023-04-11 Thread Andrea Righi
Same issue as LP: #2011748, that should be fixed by: a6d8a9c1e5fa ("arm64: efi: Use SMBIOS processor version to key off Ampere quirk") -- 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/2015741

[Kernel-packages] [Bug 2016186] Re: 5.19 not reporting cgroups v1 blkio.throttle.io_serviced

2023-04-14 Thread Andrea Righi
It might be worth to report this also upstream, apparently there was a behavior change with the blkio controller in cgroup1 that happend at some point between 5.15 and 5.19. I'll do more tests and will let you know if I find anything relevant. Thanks for reporting this! -- You received this bug n

[Kernel-packages] [Bug 1943560] [NEW] ubuntu_ltp.kernel_misc test failure on ppc64el

2021-09-14 Thread Andrea Righi
Public bug reported: ubuntu_ltp.kernel_misc test failure on impish linux 5.13: STARTubuntu_ltp.kernel_miscubuntu_ltp.kernel_misc 02:33:58 DEBUG| [stdout] cpufreq_boost1 TFAIL : cpufreq_boost.c:189: compare time spent with and without boost (-2%) ...  384612 Traceb

[Kernel-packages] [Bug 1943694] [NEW] ubuntu_ltp cpuhotplug test failure on arm64

2021-09-15 Thread Andrea Righi
Public bug reported: ubuntu_ltp cpuhotplug03 test is failing with the following error on arm64: cpuhotplug03 1 TFAIL: No cpuhotplug_do_spin_loop processes found on CPU1 ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you

[Kernel-packages] [Bug 1943695] [NEW] ubuntu_ltp.fs test timeout

2021-09-15 Thread Andrea Righi
Public bug reported: Some times this test can fail with the following error: 06:20:37 DEBUG| [stdout] tag=isofs stime=1631081630 dur=0 exit=exited stat=32 core=no cu=1 cs=1 ... 06:20:37 DEBUG| [stdout] Test timeouted, sending SIGKILL! 06:20:37 DEBUG| [stdout] tst_test.c:1399: TINFO: If you are r

[Kernel-packages] [Bug 1943696] [NEW] ubuntu_ltp controller test failure

2021-09-15 Thread Andrea Righi
Public bug reported: I think we need to fix the test itself (not really a kernel issue probably), but worth investigating: 07:35:14 DEBUG| [stdout] mount: /dev/cpuctl: cpuctl already mounted or mount point busy. 07:35:14 DEBUG| [stdout] cpuctl_test_fj1 TFAIL : ltpapicmd.c:188: failed to

[Kernel-packages] [Bug 1943697] [NEW] net veth selftest failure

2021-09-15 Thread Andrea Righi
Public bug reported: This is an old error that doesn't seem to happen if we run this test isolated from the others, maybe the reason is that something is not cleaned up properly (we should probably consider to exclude this test from the net tests and run it isolated as a separate test): 1

[Kernel-packages] [Bug 1943699] [NEW] ubuntu_ltp crypto test failure

2021-09-15 Thread Andrea Righi
Public bug reported: 6:28:16 DEBUG| [stdout] tag=af_alg06 stime=1631118362 dur=0 exit=exited stat=0 core=no cu=0 cs=0 16:28:16 DEBUG| [stdout] startup='Wed Sep 8 16:26:02 2021' 16:28:16 DEBUG| [stdout] tst_test.c:1353: TINFO: Timeout per run is 0h 05m 00s 16:28:16 DEBUG| [stdout] ../../../includ

[Kernel-packages] [Bug 1943700] [NEW] ubuntu_ltp cve test failure on arm64

2021-09-15 Thread Andrea Righi
Public bug reported: We should consider to increase the timeout for this test, because in some slow systems it may fail with the following error: 16:25:59 DEBUG| [stdout] tag=cve-2018-101 stime=1631117534 dur=0 exit=exited stat=0 core=no cu=0 cs=0 16:25:59 DEBUG| [stdout] startup='Wed Sep 8

[Kernel-packages] [Bug 1944028] [NEW] linux-aws 5.13: KCSAN bug on Xen-based instances

2021-09-18 Thread Andrea Righi
Public bug reported: 5.13 with KCSAN enabled reports the following bug on Xen-based instances. Maybe it's worth investigating to determine if they are false positives or not, for now, I think we can just disable CONFIG_KCSAN to prevent this boot problem: 200 01:51:29

[Kernel-packages] [Bug 1944411] [NEW] ubuntu_bpf: build failure with kernel 5.13

2021-09-21 Thread Andrea Righi
Public bug reported: 12886 Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h' 12887 libbpf: elf: skipping unrecognized data section(5) .rodata.str1.1

[Kernel-packages] [Bug 1944411] Re: ubuntu_bpf: build failure with kernel 5.13

2021-09-21 Thread Andrea Righi
We likely need this commit to fix this build issue, but it's not trivial to backport it, we are going to hint the test for now: commit 4d1b62986125b6de596c98310543652a7892e097 Author: Alexei Starovoitov Date: Thu May 13 17:36:20 2021 -0700 selftests/bpf: Convert few tests to light skeleton

[Kernel-packages] [Bug 1944520] [NEW] ubuntu_nbd_smoke_test: failed to setup device

2021-09-22 Thread Andrea Righi
Public bug reported: ubuntu_nbd_smoke_test seems to fail on small instances when tested in any cloud: 355 NBD device /dev/nbd0 created 356 found nbd export 357 NBD exports found: 358 test 359 starting client with NBD device /dev/nbd0 360

[Kernel-packages] [Bug 1944550] [NEW] impish/linux-gcp: CONFIG_BPF_UNPRIV_DEFAULT_OFF must be set to y

2021-09-22 Thread Andrea Righi
Public bug reported: This option will disable uprivileged BPF by default. It can be reenabled, though, as it uses the new value 2 for the kernel.unprivileged_bpf_disabled sysctl. That value disables it, but allows the sysctl knob to be set back to 0. This allows sysadmins to enable unprivil

[Kernel-packages] [Bug 1944554] [NEW] impish/linux-aws: ubuntu_ltp_syscalls.perf_event_open02 test failure

2021-09-22 Thread Andrea Righi
Public bug reported: 81727 04:16:04 INFO | START ubuntu_ltp_syscalls.perf_event_open02ubuntu_ltp_syscalls.perf_event_open02 timestamp=1632284164timeout=900localtime=Sep 22 04:16:04 81728 04:16:04 DEBUG| Persistent state client._recor

[Kernel-packages] [Bug 1947557] [NEW] kernel panic: NULL pointer dereference in wb_timer_f()

2021-10-18 Thread Andrea Righi
Public bug reported: I can trigger the following kernel panic with the latest impish kernel 5.13.0-19-generic, running systemd autopkgtest using --enable-kvm for the instances created by systemd to run the autotest: [ 119.987108] BUG: kernel NULL pointer dereference, address: 0098 [

[Kernel-packages] [Bug 1947557] Re: kernel panic: NULL pointer dereference in wb_timer_f()

2021-10-18 Thread Andrea Righi
** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Changed in: linux (Ubuntu Impish) Status: Incomplete => Confirmed ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Andrea Righi (arighi) ** Changed in: linux (Ubuntu Impish) Assignee: (u

[Kernel-packages] [Bug 1947557] Re: kernel panic: NULL pointer dereference in wb_timer_f()

2021-10-18 Thread Andrea Righi
Additional information about this (from the memory dump that I was able to get): crash> gdb list *(wb_timer_fn+0x44) 0x991abcc4 is in wb_timer_fn (/build/impish/block/blk-wbt.c:237). 235 static int latency_exceeded(struct rq_wb *rwb, struct blk_rq_stat *stat) 236 { 237

[Kernel-packages] [Bug 1947557] Re: kernel panic: NULL pointer dereference in wb_timer_f()

2021-10-19 Thread Andrea Righi
https://lore.kernel.org/lkml/YW6N2qXpBU3oc50q@arighi-desktop/T/#u ^ Potential upstream fix (I tested with this one applied and I couldn't break the kernel), let's wait for a feedback from the LKML, if that fix is reasonable I'll send a proper SRU email to apply it to the Ubuntu kernel. -- You re

[Kernel-packages] [Bug 1947709] [NEW] Drop "UBUNTU: SAUCE: cachefiles: Page leaking in cachefiles_read_backing_file while vmscan is active"

2021-10-19 Thread Andrea Righi
Public bug reported: [Impact] "UBUNTU: SAUCE: cachefiles: Page leaking in cachefiles_read_backing_file while vmscan is active" has been applied to fix a page leaking issue. However a slightly different fix has been applied upstream: 9a24ce5b66f9c8190d63b15f4473600db4935f1f cachefiles: Fix page

[Kernel-packages] [Bug 1947709] Re: Drop "UBUNTU: SAUCE: cachefiles: Page leaking in cachefiles_read_backing_file while vmscan is active"

2021-10-19 Thread Andrea Righi
** Also affects: linux (Ubuntu Impish) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Hirsute) Import

[Kernel-packages] [Bug 1947709] Re: Drop "UBUNTU: SAUCE: cachefiles: Page leaking in cachefiles_read_backing_file while vmscan is active"

2021-10-19 Thread Andrea Righi
** Description changed: [Impact] "UBUNTU: SAUCE: cachefiles: Page leaking in cachefiles_read_backing_file while vmscan is active" has been applied to fix a page leaking issue. However a slightly different fix has been applied upstream: 9a24ce5b66f9c8190d63b15f4473600db4935f1f ca

[Kernel-packages] [Bug 1947709] Re: Drop "UBUNTU: SAUCE: cachefiles: Page leaking in cachefiles_read_backing_file while vmscan is active"

2021-10-19 Thread Andrea Righi
** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Bionic) Status: New => Confirmed ** Changed in: linux (Ubuntu Focal) Status: Incomplete => Confirmed ** Changed in: linux (Ubuntu Hirsute) Status: Incomplete => Co

[Kernel-packages] [Bug 1947557] Re: kernel panic: NULL pointer dereference in wb_timer_f()

2021-10-19 Thread Andrea Righi
** Description changed: + [Impact] + + It is possible to trigger a kernel panic with the latest impish kernel + running systemd autopkgtest using --enable-kvm with the test instances + created by systemd during the autotest. The panic happens in the host, + not in the guest VM executed by systemd

[Kernel-packages] [Bug 1948038] [NEW] disable CONFIG_KFENCE_STATIC_KEYS in linux 5.15

2021-10-21 Thread Andrea Righi
Public bug reported: [Impact] KFENCE devs are changing CONFIG_KFENCE_STATIC_KEYS to be disabled by default, because it's introducing more problems than benefits: https://lore.kernel.org/all/20211019102524.2807208-2-el...@google.com/T/#u This also seems to trigger QEMU bugs during the systemd au

[Kernel-packages] [Bug 2038437] Re: mantic:linux ubuntu_qrt_kernel_security.KernelSecurityTest.test_082_stack_guard_kernel: Could not find a suitable kernel module to test

2023-10-04 Thread Andrea Righi
Patch in attach (against qa-regression-testing) allows to fix this issue. ** Patch added: "0001-scripts-test-kernel-security.py-support-zstd-compres.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2038437/+attachment/5706797/+files/0001-scripts-test-kernel-security.py-support-zstd

[Kernel-packages] [Bug 2038522] [NEW] disable shiftfs

2023-10-05 Thread Andrea Righi
Public bug reported: [Impact] Now that all the filesystems that we officially support have the idmapped mounts capability we can get rid of shiftfs. The benefit of this change is that we don't have to maintain an out-of- tree filesystem anymore and we can completely rely on upstream features. [

[Kernel-packages] [Bug 2038611] [NEW] drop all references to is_rust_module.sh in kernels >= 6.5

2023-10-06 Thread Andrea Righi
Public bug reported: [Impact] The script tools/is_rust_module.sh has been dropped by this commit: 079c66bbe2f8 ("UBUNTU: SAUCE: btf, scripts: rust: drop is_rust_module.sh") And upstream as well (in 6.6): 41bdc6decda0 ("btf, scripts: rust: drop is_rust_module.sh") But we still have a refer

[Kernel-packages] [Bug 2038611] Re: drop all references to is_rust_module.sh in kernels >= 6.5

2023-10-06 Thread Andrea Righi
** Also affects: linux (Ubuntu Mantic) Importance: Undecided Status: Incomplete -- 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/2038611 Title: drop all references to is_rust_mod

[Kernel-packages] [Bug 2039009] [NEW] do not ship ZSTD compressed modules in jammy/hwe-6.5 kernels

2023-10-11 Thread Andrea Righi
Public bug reported: Providing zstd compressed modules may break user-space scripts/tools/binaries that are relying on the .ko naming schema. The kernel can still support ZSTD compressed modules (via CONFIG_MODULE_COMPRESS_ZSTD), but our shipped kernel modules will be just regular .ko files. **

[Kernel-packages] [Bug 2039010] [NEW] revert support for arbitrary symbol length in modversion in hwe kernels

2023-10-11 Thread Andrea Righi
Public bug reported: The following patch may break user-space, providing an actual ABI change: UBUNTU: SAUCE: modpost: support arbitrary symbol length in modversion This is not critical for new releases (also considering that the potential breakage is unlikely to happen, unless some tools/scri

[Kernel-packages] [Bug 2020356] [NEW] generate linux-lib-rust only on amd64

2023-05-22 Thread Andrea Righi
Public bug reported: [Impact] Rust is only supported by amd64 at the moment, so there is no reason to generate linux-lib-rust packages on the other architectures. [Test case] Simply build the kernel, generating all the deb packages. [Fix] Produce linux-lib-rust only on amd64. [Regression pot

[Kernel-packages] [Bug 2020413] [NEW] fix typo in config-checks invocation

2023-05-23 Thread Andrea Righi
Public bug reported: [Impact] After migrating to the new annotations-only model in jammy we introduced a typo in debian/rules.d/4-checks.mk, that is triggered if we opt to not migrate to the new model and still use the old configs+annotations. [Test case] With debian./config/config.common.ubunt

[Kernel-packages] [Bug 2020531] [NEW] support python < 3.9 with annotations

2023-05-23 Thread Andrea Righi
Public bug reported: [Impact] At the moment we can't use the annotations scripts in focal, because we are using the'|=' update operator for merging dicts, that has been introduced with python 3.9. Rewrite the code that is using this operator in a more portable way and apply this change everywher

[Kernel-packages] [Bug 2019979] Re: nvidia-dkms-* FTBS with linux 6.3

2023-05-25 Thread Andrea Righi
** Also affects: nvidia-graphics-drivers-390 (Ubuntu Lunar) Importance: Undecided Status: New ** Also affects: nvidia-graphics-drivers-450-server (Ubuntu Lunar) Importance: Undecided Status: New ** Also affects: nvidia-graphics-drivers-470 (Ubuntu Lunar) Importance: Undecid

[Kernel-packages] [Bug 2019869] Re: nvidia-dkms-390: better support for kernel 6.2

2023-05-25 Thread Andrea Righi
Attached debdiff contains the SRU patch to fix the same nvidia-dkms-390 build error with kernel 6.2 for lunar. ** Patch added: "nvidia-dkms-390-lunar-better-support-for-linux-6.2.debdiff" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/2019869/+attachment/5675576/+fi

[Kernel-packages] [Bug 2019869] Re: nvidia-dkms-390: better support for kernel 6.2

2023-05-25 Thread Andrea Righi
Wrong debdiff, here's a new one cleaned up properly, ignore comment #5. ** Patch added: "nvidia-dkms-390-lunar-better-support-for-linux-6.2-v2.debdiff" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/2019869/+attachment/5675615/+files/nvidia-dkms-390-lunar-better-sup

[Kernel-packages] [Bug 2019869] Re: nvidia-dkms-390: better support for kernel 6.2

2023-05-25 Thread Andrea Righi
And here's the debdiff for jammy. Same fix. ** Patch added: "nvidia-dkms-390-jammy-better-support-for-linux-6.2.debdiff" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/2019869/+attachment/5675616/+files/nvidia-dkms-390-jammy-better-support-for-linux-6.2.debdiff --

[Kernel-packages] [Bug 2019869] Re: nvidia-dkms-390: better support for kernel 6.2

2023-05-29 Thread Andrea Righi
@zniavre in comment #6 I posted a patch for lunar, so it'll be applied also there at some point. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/2019869 Title: nvidi

[Kernel-packages] [Bug 2021605] [NEW] introduce do_lib_rust=true|false to enable/disable linux-lib-rust package

2023-05-30 Thread Andrea Righi
Public bug reported: [Impact] Provide a variable do_lib_rust=true|false in the kernel build system to selectively enable the Rust packaging (linux-lib-rust) with specific kernels and specific architectures. Right now Rust should be enabled only in lunar and mantic and only on amd64. [Test case]

[Kernel-packages] [Bug 2009253] Re: nvidia-dkms-450-server FTBS with linux 6.2

2023-06-01 Thread Andrea Righi
** Also affects: nvidia-graphics-drivers-450-server (Ubuntu Jammy) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-450-server in Ubuntu. https://bugs.launchpad.net/bugs/20

[Kernel-packages] [Bug 2023007] [NEW] kernel .config lowlatency improvements

2023-06-06 Thread Andrea Righi
Public bug reported: [Impact] The lowlatency kernel in Ubuntu is specifically designed to prioritize high responsiveness, making it ideal for multimedia environments like DAWs and audio processing platforms, as well as soft real-time environments. With the introduction of a real-time kernel, it

[Kernel-packages] [Bug 2023629] [NEW] enable multi-gen LRU by default

2023-06-13 Thread Andrea Righi
Public bug reported: [Impact] Kernels >= 6.1 have the option to use an alternative least-recently-used (LRU) page reclaiming mechanism, called multi-gen LRU [1]. In short: the kernel used to maintain two LRU lists of "touched" pages: the "active" and "inactive" lists. The former contains pages t

[Kernel-packages] [Bug 2023629] Re: enable multi-gen LRU by default

2023-06-13 Thread Andrea Righi
** Description changed: [Impact] Kernels >= 6.1 have the option to use an alternative least-recently-used (LRU) page reclaiming mechanism, called multi-gen LRU [1]. In short: the kernel used to maintain two LRU lists of "touched" pages: the "active" and "inactive" lists. The former

[Kernel-packages] [Bug 2023629] Re: enable multi-gen LRU by default

2023-06-13 Thread Andrea Righi
** Description changed: [Impact] Kernels >= 6.1 have the option to use an alternative least-recently-used (LRU) page reclaiming mechanism, called multi-gen LRU [1]. In short: the kernel used to maintain two LRU lists of "touched" pages: the "active" and "inactive" lists. The former

[Kernel-packages] [Bug 2023629] Re: enable multi-gen LRU by default

2023-06-13 Thread Andrea Righi
** Description changed: [Impact] Kernels >= 6.1 have the option to use an alternative least-recently-used (LRU) page reclaiming mechanism, called multi-gen LRU [1]. In short: the kernel used to maintain two LRU lists of "touched" pages: the "active" and "inactive" lists. The former

[Kernel-packages] [Bug 2023629] Re: enable multi-gen LRU by default

2023-06-13 Thread Andrea Righi
** Changed in: linux (Ubuntu Mantic) Status: Confirmed => Fix Committed -- 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/2023629 Title: enable multi-gen LRU by default Status in li

[Kernel-packages] [Bug 2016398] Re: stacked overlay file system mounts that have chroot() called against them appear to be getting locked (by the kernel most likely?)

2023-06-20 Thread Andrea Righi
This patch should fix this bug without breaking the behavior of /proc/self/map_files. Can you give it a try? I can also prepare a test kernel if you need. ** Patch added: "0001-UBUNTU-SAUCE-overlayfs-fix-reference-count-mismatch.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2016

[Kernel-packages] [Bug 2058165] Re: System freeze on copy large files on usb

2024-03-19 Thread Andrea Righi
Can you elaborate more on the freeze part? Does the system completely freezes and it never recovers or is it a temporary freeze (until the copy completes)? How much RAM do you have in your system? Can you check if the following helps to mitigate the problem? $ echo $((32 * 1024 * 1024)) | sudo

[Kernel-packages] [Bug 2058191] Re: Getting SIGSEGV and SIGILL in many programs

2024-03-19 Thread Andrea Righi
The message `mce: [Hardware Error]: Machine check events logged` really seems to indicate a potential hardware malfunction. Can you double check if this is happening only with the latest 6.8? Do you see anything similar in dmesg with other kernels? -- You received this bug notification because y

[Kernel-packages] [Bug 2055805] Re: touchpad not working with kernel 6.8

2024-03-19 Thread Andrea Righi
I don't have the hardware at the moment. It'd be great if you could do a test with the latest mainline build, so that we can better understand if it's an upstream issue or something specific with the Ubuntu kernel (or maybe a kernel .config issue): https://kernel.ubuntu.com/mainline/v6.8.1/ Thank

[Kernel-packages] [Bug 2055805] Re: touchpad not working with kernel 6.8

2024-03-19 Thread Andrea Righi
@tijs not exactly that kernel, but a kernel that has all the fixes that are included in 6.8.1. :) If you are willing to do one more test to confirm that everything is fine in the next candidate kernel for 24.04, you could try with 6.8.0-20.20 from this ppa: https://launchpad.net/~canonical-kernel-

[Kernel-packages] [Bug 2058191] Re: Getting SIGSEGV and SIGILL in many programs

2024-03-19 Thread Andrea Righi
Can you give it a try also with the latest upstream 6.8 (available here https://kernel.ubuntu.com/mainline/v6.8.1/). This should help to verify if it's an upstream issue or a specific issue with the Ubuntu kernel. Thanks! -- You received this bug notification because you are a member of Kernel P

[Kernel-packages] [Bug 2058191] Re: Getting SIGSEGV and SIGILL in many programs

2024-03-20 Thread Andrea Righi
Hm... honestly this looks more like a user-space / brave issue than a kernel issue. Do you get similar SIGSEGV with other apps? -- 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/2058191 Title

[Kernel-packages] [Bug 2058191] Re: Getting SIGSEGV and SIGILL in many programs

2024-03-20 Thread Andrea Righi
Unfortunately those traces don't say much without the debugging symbols. If it happens also with the mainline kernel we should see similar bugs reported upstream, that's why I'm not very convinced about this being a kernel issue. More likely a library issue, considering that it happens with differe

[Kernel-packages] [Bug 2051560] Re: Provide python perf module

2024-03-22 Thread Andrea Righi
** Description changed: + [Impact] + + We need to provide the python perf module, because some applications + (such as tuned) require it. + + This module is implemented inside perf, provided by the kernel. + + At the moment we provide a distinct perf for each kernel installed in + the system. T

[Kernel-packages] [Bug 2051560] Re: Provide python perf module

2024-03-22 Thread Andrea Righi
Patch sent to the kernel team mailing list for review: https://lists.ubuntu.com/archives/kernel-team/2024-March/149751.html -- 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/2051560 Title:

[Kernel-packages] [Bug 2051560] Re: Provide python perf module

2024-03-22 Thread Andrea Righi
** Changed in: linux (Ubuntu) Status: New => Fix Committed -- 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/2051560 Title: Provide python perf module Status in linux package in Ubu

[Kernel-packages] [Bug 2059080] [NEW] Add Real-time Linux Analysis tool (rtla) to linux-tools

2024-03-26 Thread Andrea Righi
Public bug reported: [Impact] The **rtla** is a meta-tool that includes a set of commands that aims to analyze the real-time properties of Linux. Considering the latest "low-latency" capabilities acquired by the generic kernel and also considering the recent trend in Ubuntu to focus on performan

[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot

2024-03-27 Thread Andrea Righi
Looking at the code this issue seems to be introduced by `UBUNTU: SAUCE: modpost: support arbitrary symbol length in modversion` and the UBSAN warning tells us that accessing vers->name[0] could be an out-of-bounds access. The struct modversion_info contains a flexibile array (name), that is corre

[Kernel-packages] [Bug 2059762] [NEW] CONFIG_INTEL_TDX_HOST conflicts with kexec in linux >= 6.8 for noble

2024-03-29 Thread Andrea Righi
Public bug reported: [Impact] CONFIG_INTEL_TDX_HOST depends on !KEXEC_CORE in the latest 6.8 kernel. This was introduced by: cb8eb06d50fc ("x86/virt/tdx: Disable TDX host support when kexec is enabled") We cannot regress kexec, therefore we need to disable CONFIG_INTEL_TDX_HOST in the generic

[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot

2024-03-29 Thread Andrea Righi
If the issue is fixed without the extra patch, I think we can ignore it, it was probably a false positive from UBSAN. Let's keep an eye on it and if it shows up again in the future we can do a test with my additional patch. Thanks for update! -- You received this bug notification because you are

[Kernel-packages] [Bug 2046040] Re: enable CONFIG_INTEL_TDX_HOST in linux >= 6.7 for noble

2024-03-29 Thread Andrea Righi
Changing the state to Won't fix, because of LP: #2059762. ** Changed in: linux (Ubuntu Noble) Status: Fix Released => Won't Fix -- 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/204604

[Kernel-packages] [Bug 2059080] Re: Add Real-time Linux Analysis tool (rtla) to linux-tools

2024-04-02 Thread Andrea Righi
** Changed in: linux (Ubuntu Noble) Status: New => Fix Committed -- 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/2059080 Title: Add Real-time Linux Analysis tool (rtla) to linux-to

[Kernel-packages] [Bug 2060130] Re: [SPR][EMR][GNR] TDX: efi: TD Measurement support for kernel cmdline/initrd sections from EFI stub

2024-04-04 Thread Andrea Righi
Applied all the listed commits to noble/linux, including also: 9c55461040a9 ("x86/efistub: Remap kernel text read-only before dropping NX attribute") ** Also affects: linux (Ubuntu Noble) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Noble) Status: New => Fix

[Kernel-packages] [Bug 2055805] Re: touchpad not working with kernel 6.8

2024-04-09 Thread Andrea Righi
@tijs thanks for testing it! If 6.8.0-19 is working I assume that also the latest kernel in release (6.8.0-22.22) is also working. If that's the case I think we can close this for now. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux

[Kernel-packages] [Bug 2060909] [NEW] Backport mitigations for the native BHI hardware vulnerabilty

2024-04-10 Thread Andrea Righi
Public bug reported: [Impact] Branch History Injection (BHI) attacks may allow a malicious application to influence indirect branch prediction in kernel by poisoning the branch history. eIBRS isolates indirect branch targets in ring0. The BHB can still influence the choice of indirect branch pre

[Kernel-packages] [Bug 2060909] Re: Backport mitigations for the native BHI hardware vulnerabilty

2024-04-10 Thread Andrea Righi
** Changed in: linux (Ubuntu Noble) Status: New => Fix Committed ** Description changed: [Impact] Branch History Injection (BHI) attacks may allow a malicious application to influence indirect branch prediction in kernel by poisoning the branch history. eIBRS isolates indirect b

[Kernel-packages] [Bug 2060909] Re: Apply mitigations for the native BHI hardware vulnerabilty

2024-04-10 Thread Andrea Righi
** Summary changed: - Backport mitigations for the native BHI hardware vulnerabilty + Apply mitigations for the native BHI hardware vulnerabilty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/b

[Kernel-packages] [Bug 2060909] Re: Apply mitigations for the native BHI hardware vulnerabilty

2024-04-10 Thread Andrea Righi
** Description changed: [Impact] Branch History Injection (BHI) attacks may allow a malicious application to influence indirect branch prediction in kernel by poisoning the branch history. eIBRS isolates indirect branch targets in ring0. The BHB can still influence the choice of in

[Kernel-packages] [Bug 2051672] Re: [FFe] Merge iproute2 with the latest Debian version: 6.8.0-1 from testing/unstable (main)

2024-04-17 Thread Andrea Righi
According to the information that I collected (asking around, investigating, etc.), it seems that there are no critical users of ubuntu-fan. Moreover, considering the impact of the ubuntu-fan kernel patches (that would require a major refactoring to avoid breaking the network eBPF ABI), we decided

[Kernel-packages] [Bug 2063298] [NEW] deprecate ubuntu-fan in Noble

2024-04-23 Thread Andrea Righi
Public bug reported: [Impact] In order to provide ubuntu-fan we need to maintain additional kernel SAUCE patches that are currently conflicting with upstream code, potentially breaking networking eBPF APIs. To prevent such incompatibility the whole patch set requires a major redesign. However,

[Kernel-packages] [Bug 1951440] Re: Enable CONFIG_INTEL_IOMMU_DEFAULT_ON and CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON on jammy 5.15

2024-02-21 Thread Andrea Righi
** Also affects: linux (Ubuntu Noble) Importance: Undecided Status: Fix Released ** Summary changed: - Enable CONFIG_INTEL_IOMMU_DEFAULT_ON and CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON on jammy 5.15 + Enable CONFIG_INTEL_IOMMU_DEFAULT_ON and CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT

[Kernel-packages] [Bug 2055310] Re: dmesg spammed by virtui-fs and 9pnet-virtio messages

2024-02-28 Thread Andrea Righi
I don't see these messages with the latest Noble using the kernel from the proposed pocket (6.8.0-11-generic). Can you also give it a try (if you can)? Hopefully we'll be able to promote a 6.8 in release soon, we are currently blocked by a glibc regression (that doesn't seem to be a kernel regress

[Kernel-packages] [Bug 2049390] Re: Please change CONFIG_CONSOLE_LOGLEVEL_QUIET to 3

2024-02-29 Thread Andrea Righi
For the general use case I think that reducing the verbosity makes sense. About our testing, I think we're not booting kernels with "quiet", and if we do we should definitely drop it from the kernel boot options. -- You received this bug notification because you are a member of Kernel Packages, w

[Kernel-packages] [Bug 1951440] Re: Enable CONFIG_INTEL_IOMMU_DEFAULT_ON and CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON

2024-02-29 Thread Andrea Righi
** Changed in: linux (Ubuntu Noble) Status: New => Fix Committed -- 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/1951440 Title: Enable CONFIG_INTEL_IOMMU_DEFAULT_ON and CONFIG_IN

[Kernel-packages] [Bug 2055310] Re: dmesg spammed by virtui-fs and 9pnet-virtio messages

2024-03-02 Thread Andrea Righi
I haven't been able to reproduce this on my PC yet... Looking at the error, especially the virtio-fs part, I'm wondering if you're missing virtiofsd in your host. Can you try to `apt install virtiofsd` (if you don't have it installed already)? -- You received this bug notification because you are

[Kernel-packages] [Bug 2056126] [NEW] hwmon: (coretemp) Fix core count limitation

2024-03-04 Thread Andrea Righi
Public bug reported: [Impact] In linux 6.8 the coretemp driver supports at most 128 cores per package. Cores higher than 128 will lose their core temperature information. There is an upstream patch set that allows to support more than 128 cores per package, but it's applied to linux-next for now

[Kernel-packages] [Bug 2056126] Re: hwmon: (coretemp) Fix core count limitation

2024-03-06 Thread Andrea Righi
** Changed in: linux (Ubuntu Noble) Status: New => Fix Committed -- 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/2056126 Title: hwmon: (coretemp) Fix core count limitation Status

[Kernel-packages] [Bug 2051342] Re: Enable lowlatency settings in the generic kernel

2024-03-07 Thread Andrea Righi
** Changed in: linux (Ubuntu Noble) Status: New => Fix Committed -- 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/2051342 Title: Enable lowlatency settings in the generic kernel St

[Kernel-packages] [Bug 2056616] Re: left-over ceph debugging printks

2024-03-08 Thread Andrea Righi
** Changed in: linux (Ubuntu Noble) Status: In Progress => Fix Committed -- 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/2056616 Title: left-over ceph debugging printks Status in

[Kernel-packages] [Bug 2038611] Re: drop all references to is_rust_module.sh in kernels >= 6.5

2023-11-29 Thread Andrea Righi
This is still failing in mantic, "something" in our kernel cranking process re-added the chmod command in debian.master/reconstruct for is_rust_module.sh, this needs further investigation. ** Tags removed: verification-needed-mantic-linux ** Tags added: verification-failed-mantic -- You received

[Kernel-packages] [Bug 2038522] Re: disable shiftfs

2023-11-29 Thread Andrea Righi
** Tags removed: verification-needed-mantic-linux ** Tags added: verification-done-mantic -- 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/2038522 Title: disable shiftfs Status in linux p

[Kernel-packages] [Bug 2038522] Re: disable shiftfs

2023-11-29 Thread Andrea Righi
shiftfs has been correctly disabled in 6.5.0-14: $ uname -r 6.5.0-14-generic $ sudo modprobe shiftfs modprobe: FATAL: Module shiftfs not found in directory /lib/modules/6.5.0-14-generic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to lin

[Kernel-packages] [Bug 2045492] [NEW] make lazy RCU a boot time option

2023-12-03 Thread Andrea Righi
Public bug reported: [Impact] With LP: #2023007 we have decided to enable CONFIG_RCU_LAZY in the lowlatency kernel to improve power consumption, but this option can potentially introduce performance regressions in some cases, due to the fact that RCU callbacks are now batched and flushed all at o

[Kernel-packages] [Bug 2045503] [NEW] apply sched-ext patch set to linux-unstable

2023-12-03 Thread Andrea Righi
Public bug reported: [Impact] sched-ext is a new scheduling class introduced in the Linux kernel that provides a mechanism to implement scheduling policies as eBPF programs (https://lwn.net/Articles/922405/). Such programs can also be connected to user-space counterparts to defer scheduling decis

[Kernel-packages] [Bug 2045503] Re: apply sched-ext patch set to linux-unstable

2023-12-05 Thread Andrea Righi
** Description changed: [Impact] sched-ext is a new scheduling class introduced in the Linux kernel that provides a mechanism to implement scheduling policies as eBPF programs (https://lwn.net/Articles/922405/). Such programs can also be connected to user-space counterparts to defer s

[Kernel-packages] [Bug 2045503] Re: apply sched-ext patch set to linux-unstable

2023-12-05 Thread Andrea Righi
** Description changed: [Impact] sched-ext is a new scheduling class introduced in the Linux kernel that provides a mechanism to implement scheduling policies as eBPF programs (https://lwn.net/Articles/922405/). Such programs can also be connected to user-space counterparts to defer s

[Kernel-packages] [Bug 2046040] [NEW] enable CONFIG_INTEL_TDX_HOST in linux >= 6.7 for noble

2023-12-09 Thread Andrea Righi
Public bug reported: [Impact] Intel Trust Domain Extensions (TDX) protects guest VMs from malicious host and certain physical attacks. Linux 6.7 introduced the TDX support for the host to run confidential VMs (TDX guests). [Test case] We should probably define with Intel a proper test case to

[Kernel-packages] [Bug 2048758] [NEW] nvidia-dkms-535-server-open FTBS with the latest 6.7 kernel in noble

2024-01-09 Thread Andrea Righi
Public bug reported: [Impact] /var/lib/dkms/nvidia/535.129.03/build/nvidia/libspdm_shash.c:90:26: error: implicit declaration of function ‘crypto_tfm_ctx_aligned’; did you mean ‘crypto_tfm_ctx_align’? [-Werror=implicit-function-declaration] 90 | char *src_ipad = crypto_tfm_ctx_aligne

[Kernel-packages] [Bug 2051672] Re: [FFe] Merge iproute2 with the latest Debian version: 6.8.0-1 from testing/unstable (main)

2024-04-29 Thread Andrea Righi
Hello, any progress on this? Now that ubuntu-fan is officially deprecated in Noble can we simply sync iproute2 with Debian? Is there any pending activity / requirement that are preventing this? Thanks! -- You received this bug notification because you are a member of Kernel Packages, which is sub

[Kernel-packages] [Bug 2045503] Re: provide a sched-ext enabled kernel for the 24.10 release

2024-04-30 Thread Andrea Righi
** Summary changed: - apply sched-ext patch set to linux-unstable + provide a sched-ext enabled kernel for the 24.10 release ** Also affects: linux (Ubuntu Oracular) Importance: Undecided Status: New ** No longer affects: linux (Ubuntu Noble) -- You received this bug notification bec

[Kernel-packages] [Bug 2051672] Re: Backport iproute2 6.8.0 to noble

2024-04-30 Thread Andrea Righi
Thanks @dannf for updating the bug! The SRU description looks good to me and everything seems reasonable, same with the plan. I'll keep monitoring this tracker and we'll proceed once oracular will be open. -- You received this bug notification because you are a member of Kernel Packages, which i

[Kernel-packages] [Bug 2064508] [NEW] re-enable Ubuntu FAN in the Noble kernel

2024-05-01 Thread Andrea Righi
Public bug reported: [Impact] In LP: #2063298, we have opted to deprecate Ubuntu FAN support because of the maintenance overhead and the possibility of regressions / conflicts with the new networking eBPF APIs in kernels >= 6.8. However, we cannot disable this feature in HWE/backport kernels, so

[Kernel-packages] [Bug 2064508] Re: re-enable Ubuntu FAN in the Noble kernel

2024-05-01 Thread Andrea Righi
Patch set to re-enable Ubuntu FAN in the 6.8 Noble kernel: https://lists.ubuntu.com/archives/kernel-team/2024-May/150684.html -- 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/2064508 Title:

[Kernel-packages] [Bug 2064508] Re: re-enable Ubuntu FAN in the Noble kernel

2024-05-01 Thread Andrea Righi
Test result with the patch set applied (ubuntu_fan_smoke_test): 11:48:05 INFO | Writing results to /home/ubuntu/autotest/client/results/default 11:48:05 INFO | START timestamp=1714564085localtime=May 01 11:48:05 11:48:05 INFO | START ubuntu_fan_smoke_test.setup

[Kernel-packages] [Bug 1858618] Re: linux-aws: swapoff optimization

2020-03-11 Thread Andrea Righi
** Also affects: linux-aws (Ubuntu Focal) Importance: Undecided Assignee: Andrea Righi (arighi) Status: New ** Also affects: linux-aws-5.0 (Ubuntu Focal) Importance: Undecided Status: Invalid ** Also affects: linux-aws (Ubuntu Eoan) Importance: Undecided Status

[Kernel-packages] [Bug 1831940] Re: hibernation support for linux-aws

2020-03-11 Thread Andrea Righi
Status: New ** Also affects: linux-aws-5.0 (Ubuntu Eoan) Importance: Undecided Status: New ** Changed in: linux-aws (Ubuntu Eoan) Assignee: (unassigned) => Andrea Righi (arighi) ** Changed in: linux-aws (Ubuntu Focal) Assignee: Kamal Mostafa (kamalmostafa) =>

[Kernel-packages] [Bug 1861053] Re: no fatrace output in focal

2020-03-16 Thread Andrea Righi
Hi Seth, is this still happening with the latest focal kernel? I'm trying to reproduce the problem, but I can't: $ cat /proc/version_signature Ubuntu 5.4.0-18.22-generic 5.4.24 righiandr@xps-13:~$ apt policy fatrace fatrace: Installed: 0.13-2 Candidate: 0.13-2 Version table: *** 0.13-2 500

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