This bug was nominated against a series that is no longer supported, ie
yakkety. The bug task representing the yakkety nomination is being
closed as Won't Fix.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu Yakkety)
Status: In Progress => Won't Fix
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https://bugs.launchpad.net/bugs/1687779
Title:
Ubuntu 16.04.2: kdump is not working in 4.8.0-46 kernel
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Yakkety:
Won't Fix
Bug description:
I'm not able to take a crashdump on Ubuntu Xenial 16.04.2 in 4.8.0-46 kernel.
This issue seems to be fixed mainstream: https://lkml.org/lkml/2017/1/9/77
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
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