Public bug reported:
I'm not able to take a crashdump on Ubuntu Xenial 16.04.2 in 4.8.0-46
kernel.
kdump-tools 1:1.5.9-5ubuntu0.4
makedumpfile 1:1.5.9-5ubuntu0.4
linux-image-4.8.0-46-generic 4.8.0-46.49~16.04.1
# kdump-config show
DUMP_MODE: kdump
USE_KDUMP: 1
KDUMP_SYSCTL: kernel.panic_on_oops=1
KDUMP_COREDIR: /var/crash
crashkernel addr: 0x2b000000
/var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinuz-4.8.0-46-generic
kdump initrd:
/var/lib/kdump/initrd.img: symbolic link to
/var/lib/kdump/initrd.img-4.8.0-46-generic
current state: ready to kdump
kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinuz-4.8.0-46-generic
root=LABEL=cloudimg-rootfs ro nmi_watchdog=0 elevator=deadline net.ifnames=1
cgroup_enable=memory swapaccount=1 console=ttyS0,115200 console=tty1 irqpoll
nr_cpus=1 nousb systemd.unit=kdump-tools.service"
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
The kernel trace
[ 10.738064] BUG: unable to handle kernel NULL pointer dereference at
0000000000000088
[ 10.740946] IP: [<ffffffff88e1afc2>] hswep_uncore_cpu_init+0x52/0xa0
[ 10.743571] PGD 0
[ 10.744482] Oops: 0000 [#1] SMP
[ 10.745615] Modules linked in:
[ 10.747000] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.0-46-generic
#49~16.04.1-Ubuntu
[ 10.750255] Hardware name: HP ProLiant BL460c Gen9, BIOS I36 02/17/2017
[ 10.752574] task: ffff8f16b2938ec0 task.stack: ffff8f16b2940000
[ 10.754892] RIP: 0010:[<ffffffff88e1afc2>] [<ffffffff88e1afc2>]
hswep_uncore_cpu_init+0x52/0xa0
[ 10.758371] RSP: 0018:ffff8f16b2943e40 EFLAGS: 00010206
[ 10.760337] RAX: 0000000000000050 RBX: 0000000000000000 RCX: 000000000000238a
[ 10.762787] RDX: ffff8f16b01f47e0 RSI: ffff8f16b2c1c700 RDI: 0000000000000000
[ 10.765289] RBP: ffff8f16b2943e50 R08: 000000000001c700 R09: ffffffff89231a97
[ 10.767968] R10: ffffea0000c07000 R11: 0000000000000000 R12: ffffffff89c1a030
[ 10.770399] R13: ffffffff89ea7760 R14: ffffffff89c0daf8 R15: ffff8f16b2c19300
[ 10.772894] FS: 0000000000000000(0000) GS:ffff8f16b2c00000(0000)
knlGS:0000000000000000
[ 10.775945] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.777935] CR2: 0000000000000088 CR3: 000000002d806000 CR4: 00000000001406f0
[ 10.780398] Stack:
[ 10.781154] ffff8f16b2943e50 00000000df388e ffff8f16b2943e88
ffffffff89d8b292
[ 10.884602] 0000000000000000 0000000000000105 ffffffff89d8b196
ffffffff89c0daf8
[ 10.887394] ffff8f16b2c19300 ffff8f16b2943f08 ffffffff88e02190
ffffffff88ea377f
[ 10.890699] Call Trace:
[ 10.891596] [<ffffffff89d8b292>] intel_uncore_init+0xfc/0x2d6
[ 10.893587] [<f? uncore_type_init+0x15f/0x15f
[ 11.395474] [<ffffffff88e02190>] do_one_initcall+0x50/0x1a0
[ 11.397431] [<ffffffff88ea377f>] ? parse_args+0x2cf/0x490
[ 11.399313] [<ffffffff89d86175>] kernel_init_freeable+0x178/0x217
[ 11.402112] [<ffffffff8968d2ce>] kernel_init+0xe/0x100
[ 11.404013] [<ffffffff8969aa1f>] ret_from_fork+0x1f/0x40
[ 11.405895] [<ffffffff8968d2c0>] ? rest_init+0x80/0x80
[ 11.407720] Code: 01 f4 00 39 15 2c 02 e0 00 7e 06 89 15 24 02 e0 00 48 98
48 8b 15 57 36 0e 01 48 8d 04 40 48 8d 04 c2 48 8b 40 10 48 85 c0 74 1b <8b> 70
38 48 8b 78 10 48 8d 4d f4 ba 94 00 00 00 e8 49 e2 45 00
[ 11.422367] RIP [<ffffffff88e1afc2>] hswep_uncore_cpu_init+0x52/0xa0
[ 11.425174] RSP <ffff8f16b2943e40>
[ 11.426588] CR2: 0000000000000088
[ 11.427978] ---[ end trace d8adbfe4355f5160 ]---
[ 11.430006] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x00000009
[ 11.430006]
[ 11.433354] ---[ end Kernel panic - not syncing: Attempted to kill init!
exitcode=0x00000009
[ 11.433354]
Please find the full kernel trace
** Affects: makedumpfile (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: kdump-tools
** Attachment added: "full-kernel-trace"
https://bugs.launchpad.net/bugs/1687779/+attachment/4871072/+files/kdump-kernel-trace.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1687779
Title:
Ubuntu 16.04.2: kdump is not working in 4.8.0-46 kernel
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1687779/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
