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Date: Fri, 04 Apr 2014 20:38:52 +0200
From: Toralf Förster <toralf.foerster@....de>
To: Linux Kernel <linux-kernel@...r.kernel.org>
CC: Tom Wijsman <TomWij@...too.org>
Subject: kernel bug - bisect of 3 different git trees gave the same merge
id as the first bad commit
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Since Kernel 3.13 I cannot longer use KVM under a 32bit stable Gentoo Linux. After starting a KVM an NMI occured, often the WLAN module complaints too, then the fan speeds up, the system hangs and the magic key is the only alternative to the power button..
Beside Linus' tree I tested the tip tree as well as the tree
git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
I bisected between v3.10 and HEAD, always I got 37bf0637 as the first bad commit.
Any hints how to detect the culprit ?
For completeness I attached the .config.
commit 37bf06375c90a42fe07b9bebdb07bc316ae5a0ce
Merge: 6bfa687 d0e639c
Author: Ingo Molnar <mingo@...nel.org>
Date: Wed Oct 9 12:36:13 2013 +0200
Merge tag 'v3.12-rc4' into sched/core
Merge Linux v3.12-rc4 to fix a conflict and also to refresh the tree
before applying more scheduler patches.
Conflicts:
arch/avr32/include/asm/Kbuild
Signed-off-by: Ingo Molnar <mingo@...nel.org>
An example of th the kernel meesages :
Apr 3 17:36:43 n22 kernel: INFO: rcu_sched self-detected stall on CPU
Apr 3 17:36:43 n22 kernel: 2: (59998 ticks this GP) idle=3a5/140000000000001/0 softirq=25453/25453
Apr 3 17:36:43 n22 kernel: (t=60000 jiffies g=8646 c=8645 q=18863)
Apr 3 17:36:43 n22 kernel: sending NMI to all CPUs:
Apr 3 17:36:43 n22 kernel: NMI backtrace for cpu 1
Apr 3 17:36:43 n22 kernel: CPU: 1 PID: 6374 Comm: hsgamma_FGRP3_1 Not tainted 3.12.0+ #7
Apr 3 17:36:43 n22 kernel: Hardware name: LENOVO 4180F65/4180F65, BIOS 83ET75WW (1.45 ) 05/10/2013
Apr 3 17:36:43 n22 kernel: task: ef03c470 ti: eae3c000 task.ti: eae3c000
Apr 3 17:36:43 n22 kernel: EIP: 0073:[<0819d774>] EFLAGS: 00000206 CPU: 1
Apr 3 17:36:43 n22 kernel: EIP is at 0x819d774
Apr 3 17:36:43 n22 kernel: EAX: b4f654c0 EBX: 00000e96 ECX: 0a35cf50 EDX: 0a3707a0
Apr 3 17:36:43 n22 kernel: ESI: b4f6d4c0 EDI: 00001000 EBP: 00000010 ESP: bfc37428
Apr 3 17:36:43 n22 kernel: DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
Apr 3 17:36:43 n22 kernel:
and here with the WLAN module complaining before :
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: fail to flush all tx fifo queues Q 0
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Current SW read_ptr 8 write_ptr 9
Apr 3 17:24:12 n22 kernel: iwl data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: FH TRBs(0) = 0x00000000
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: FH TRBs(1) = 0x8010206e
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: FH TRBs(2) = 0x00000000
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: FH TRBs(3) = 0x80300008
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: FH TRBs(4) = 0x00000000
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: FH TRBs(5) = 0x00000000
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: FH TRBs(6) = 0x00000000
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: FH TRBs(7) = 0x007090db
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [9,9]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [111,111]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 4 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 5 is active and mapped to fifo 4 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 6 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 7 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 8 is active and mapped to fifo 4 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [220,220]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 10 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:12 n22 kernel: iwlwifi 0000:03:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
Apr 3 17:24:14 n22 kernel: iwlwifi 0000:03:00.0: Error sending REPLY_ADD_STA: time out after 2000ms.
Apr 3 17:24:14 n22 kernel: iwlwifi 0000:03:00.0: Current CMD queue read_ptr 220 write_ptr 221
Apr 3 17:24:14 n22 kernel: wlp3s0: HW problem - can not stop rx aggregation for 08:96:d7:05:f9:2a tid 0
Apr 3 17:24:18 n22 polkitd[4253]: Registered Authentication Agent for unix-session:/org/freedesktop/ConsoleKit/Session1 (system bus name :1.19 [/usr/lib/kde4/libexec/polkit-kde-authentication-agent-1], object path /org/kde/PolicyKit1/AuthenticationAgent, locale en_US.utf8)
Apr 3 17:24:37 n22 spamd[6456]: spamd: server started on port 783/tcp (running version 3.3.2)
Apr 3 17:24:37 n22 spamd[6456]: spamd: server pid: 6456
Apr 3 17:24:37 n22 spamd[6456]: spamd: server successfully spawned child process, pid 6567
Apr 3 17:24:37 n22 spamd[6456]: spamd: server successfully spawned child process, pid 6568
Apr 3 17:24:37 n22 spamd[6456]: prefork: child states: IS
Apr 3 17:24:37 n22 spamd[6456]: prefork: child states: II
Apr 3 17:25:09 n22 kernel: INFO: rcu_sched self-detected stall on CPU
Apr 3 17:25:09 n22 kernel: 2: (59998 ticks this GP) idle=d91/140000000000001/0 softirq=14097/14097
Apr 3 17:25:09 n22 kernel: (t=60000 jiffies g=5939 c=5938 q=112553)
Apr 3 17:25:09 n22 kernel: sending NMI to all CPUs:
Apr 3 17:25:09 n22 kernel: NMI backtrace for cpu 2
Apr 3 17:25:09 n22 kernel: CPU: 2 PID: 6468 Comm: qemu-system-x86 Not tainted 3.12.0+ #7
Apr 3 17:25:09 n22 kernel: Hardware name: LENOVO 4180F65/4180F65, BIOS 83ET75WW (1.45 ) 05/10/2013
Apr 3 17:25:09 n22 kernel: task: f1ab0db0 ti: ef8e0000 task.ti: ef8e0000
Apr 3 17:25:09 n22 kernel: EIP: 0060:[<c12f4acd>] EFLAGS: 00000006 CPU: 2
Apr 3 17:25:09 n22 kernel: EIP is at __const_udelay+0xd/0x20
Apr 3 17:25:09 n22 kernel: EAX: 01062560 EBX: 00002710 ECX: c16220a0 EDX: 00278a95
Apr 3 17:25:09 n22 kernel: ESI: c162df00 EDI: f365dd20 EBP: ef8e1c80 ESP: ef8e1c80
Apr 3 17:25:09 n22 kernel: DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Apr 3 17:25:09 n22 kernel: CR0: 80050033 CR2: 00000000 CR3: 2f9f4000 CR4: 000427f0
Apr 3 17:25:09 n22 kernel: Stack:
Apr 3 17:25:09 n22 kernel: ef8e1c90 c102d9b5 c1578c9b c162df00 ef8e1cdc c108a9bc c1582d60 0000ea60
Apr 3 17:25:09 n22 kernel: 00001733 00001732 0001b7a9 c10b8929 ef8e1cd0 c106b12d 00000001 c162df00
Apr 3 17:25:09 n22 kernel: c1677b44 f365dd20 0001b7a9 00000002 f1ab0db0 00000000 00000002 ef8e1cf0
- --
MfG/Sincerely
Toralf Förster
pgp finger print:1A37 6F99 4A9D 026F 13E2 4DCF C4EA CDDE 0076 E94E
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