[PPA] 4.4 regression: kernel panic on reboot
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
High
|
Unassigned | ||
Xenial |
Confirmed
|
High
|
Unassigned |
Bug Description
While testing the unstable kernel PPA with linux-image-
ubuntu@
SLOF[0m[?25l *******
[1mQEMU Starting
[0m Build Date = Oct 9 2015 00:25:21
FW Version = buildd@ release 20140630
Press "s" to enter Open Firmware.
[0m[?25hC0000C0
Populating /vdevice/
Populating /vdevice/
Populating /vdevice/
C0580C05A0Popul
Adapters on 0800000020000000
C0600C0640C0690
C0890C08A0C08A8
OHCI: initializing
C08C0C08D0Using default console: /vdevice/
C08E0C08E8C08FF
Welcome to Open Firmware
Copyright (c) 2004, 2011 IBM Corporation All rights reserved.
This program and the accompanying materials are made available
under the terms of the BSD License available at
http://
Trying to load: from: /pci@8000000200
No DOS disk-label found.
Successfully loaded
[?25l[37m[
[?25l[37m[
[37m[40m[
Press enter to boot the selected OS, `e' to edit the commands
before booting or `c' for a command-line. [5;80H [30m[47m[
Loading initial ramdisk ...
OF stdout device is: /vdevice/
Preparing to boot Linux version 4.4.0-0-generic (buildd@
Detected machine type: 0000000000000101
Max number of cores passed to firmware: 2048 (NR_CPUS = 2048)
Calling ibm,client-
command line: BOOT_IMAGE=
memory layout at init:
memory_limit : 0000000000000000 (16 MB aligned)
alloc_bottom : 0000000005890000
alloc_top : 0000000030000000
alloc_top_hi : 0000000060000000
rmo_top : 0000000030000000
ram_top : 0000000060000000
instantiating rtas at 0x000000002fff0
prom_hold_cpus: skipped
copying OF device tree...
Building dt strings...
Building dt structure...
Device tree strings 0x00000000058a0000 -> 0x00000000058a0849
Device tree struct 0x00000000058b0000 -> 0x00000000058c0000
Quiescing Open Firmware ...
Booting Linux via __start() ...
[ 0.000000] Using pSeries machine description
[ 0.000000] Page sizes from device-tree:
[ 0.000000] base_shift=12: shift=12, sllp=0x0000, avpnm=0x00000000, tlbiel=1, penc=0
[ 0.000000] base_shift=16: shift=16, sllp=0x0110, avpnm=0x00000000, tlbiel=1, penc=1
[ 0.000000] Using 1TB segments
[ 0.000000] Found initrd at 0xc000000003a00
[ 0.000000] bootconsole [udbg0] enabled
[ 0.000000] CPU maps initialized for 1 thread per core
-> smp_release_cpus()
spinning_
<- smp_release_cpus()
[ 0.000000] Starting Linux ppc64le #3-Ubuntu SMP Mon Dec 7 10:52:50 UTC 2015
[ 0.000000] -------
[ 0.000000] ppc64_pft_size = 0x18
[ 0.000000] phys_mem_size = 0x60000000
[ 0.000000] cpu_features = 0x17fc7a6c18500249
[ 0.000000] possible = 0x1fffffef18500649
[ 0.000000] always = 0x0000000018100040
[ 0.000000] cpu_user_features = 0xdc0065c2 0xef000000
[ 0.000000] mmu_features = 0x58000001
[ 0.000000] firmware_features = 0x000000014052440b
[ 0.000000] htab_hash_mask = 0x1ffff
[ 0.000000] -------
<- setup_system()
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
[ 1.181166] NIP: c000000000183050 LR: c0000000001838c8 CTR: c000000000183880
[ 1.181216] REGS: c00000005e70b7d0 TRAP: 0300 Tainted: G W (4.4.0-0-generic)
[ 1.181274] MSR: 8000000100009033 <SF,EE,
[ 1.181394] CFAR: c000000000009958 DAR: 00000000000000c1 DSISR: 40000000 SOFTE: 1
GPR00: c0000000001838c8 c00000005e70ba50 c000000001573100 0000000000000001
GPR04: 000000000000000c 0000000000000000 0000000000000000 0000000000000000
GPR08: ffffffffffffffff 0000000000000001 ffffffffffffffff 000000000e57a24d
GPR12: c000000000183880 c00000000fb40000 c0000000000e4188 0000000004208040
GPR16: c000000058574a68 000000000000000a 0000000000000000 c00000005fe1f338
GPR20: 0000000000000000 c000000001481780 c000000000b03918 7fffffffffffffff
GPR24: 0000000000000001 c00000005e708000 c00000000147c180 c000000053079800
GPR28: c00000000152d090 c0000000015b0030 c000000053cf6950 00000000000000c1
[ 1.182066] NIP [c000000000183050] pids_cancel.
[ 1.182109] LR [c0000000001838c8] pids_free+0x48/0x80
[ 1.182142] Call Trace:
[ 1.182160] [c00000005e70ba50] [c000000000b03918] cpu_online_
[ 1.182220] [c00000005e70ba80] [c0000000001838c8] pids_free+0x48/0x80
[ 1.182271] [c00000005e70bab0] [c000000000181eb0] cgroup_
[ 1.182322] [c00000005e70bb00] [c0000000000b3998] __put_task_
[ 1.182381] [c00000005e70bb30] [c0000000000b8b6c] delayed_
[ 1.182440] [c00000005e70bb70] [c00000000013e3a0] rcu_process_
[ 1.182513] [c00000005e70bc10] [c0000000000bcff8] __do_softirq+
[ 1.182563] [c00000005e70bd00] [c0000000000bd254] run_ksoftirqd+
[ 1.182614] [c00000005e70bd20] [c0000000000e9af0] smpboot_
[ 1.182673] [c00000005e70bd80] [c0000000000e4290] kthread+0x110/0x130
[ 1.182724] [c00000005e70be30] [c000000000009538] ret_from_
[ 1.182782] Instruction dump:
[ 1.182808] 3c4c013f 384200e0 7c0802a6 fbe1fff8 f8010010 f821ffd1 7c7f1b78 60000000
[ 1.182895] 60000000 3bff00c0 3940ffff 7c2004ac <7d20f8a8> 7d2a4a14 7d20f9ad 40c2fff4
[ 1.182982] ---[ end trace 66241192affcee1c ]---
[ 1.184126]
[ 3.184191] Kernel panic - not syncing: Fatal exception in interrupt
tags: | added: bot-stop-nagging |
Changed in linux (Ubuntu): | |
status: | Incomplete → New |
status: | New → Confirmed |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1523586
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.