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Date: Fri, 06 Oct 2017 04:37:08 +0800
From: kernel test robot <fengguang.wu@...el.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: LKP <lkp@...org>, virtualization@...ts.linux-foundation.org,
linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
Thomas Gleixner <tglx@...utronix.de>,
LKML <linux-kernel@...r.kernel.org>, wfg@...ux.intel.com
Subject: 24e700e291 ("Merge branch 'x86-apic-for-linus' of .."): WARNING: kernel stack regs at 979f9f70 in kworker/u4:1:648 has bad 'bp' value (null)
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 24e700e291d52bd200212487e2b654c0aa3f07a2
Merge: f57091767add2 c6ef89421e236
Author: Linus Torvalds <torvalds@...ux-foundation.org>
AuthorDate: Mon Sep 4 17:43:56 2017 -0700
Commit: Linus Torvalds <torvalds@...ux-foundation.org>
CommitDate: Mon Sep 4 17:43:56 2017 -0700
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic updates from Thomas Gleixner:
"This update provides:
- Cleanup of the IDT management including the removal of the extra
tracing IDT. A first step to cleanup the vector management code.
- The removal of the paravirt op adjust_exception_frame. This is a
XEN specific issue, but merged through this branch to avoid nasty
merge collisions
- Prevent dmesg spam about the TSC DEADLINE bug, when the CPU has
disabled the TSC DEADLINE timer in CPUID.
- Adjust a debug message in the ioapic code to print out the
information correctly"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
x86/idt: Fix the X86_TRAP_BP gate
x86/xen: Get rid of paravirt op adjust_exception_frame
x86/eisa: Add missing include
x86/idt: Remove superfluous ALIGNment
x86/apic: Silence "FW_BUG TSC_DEADLINE disabled due to Errata" on CPUs without the feature
x86/idt: Remove the tracing IDT leftovers
x86/idt: Hide set_intr_gate()
x86/idt: Simplify alloc_intr_gate()
x86/idt: Deinline setup functions
x86/idt: Remove unused functions/inlines
x86/idt: Move interrupt gate initialization to IDT code
x86/idt: Move APIC gate initialization to tables
x86/idt: Move regular trap init to tables
x86/idt: Move IST stack based traps to table init
x86/idt: Move debug stack init to table based
x86/idt: Switch early trap init to IDT tables
x86/idt: Prepare for table based init
x86/idt: Move early IDT setup out of 32-bit asm
x86/idt: Move early IDT handler setup to IDT code
x86/idt: Consolidate IDT invalidation
...
f57091767a Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
c6ef89421e x86/idt: Fix the X86_TRAP_BP gate
24e700e291 Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
0f380715e5 Merge tag 'sound-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
1418b85217 Add linux-next specific files for 20170929
+----------------------+------------+------------+------------+------------+---------------+
| | f57091767a | c6ef89421e | 24e700e291 | 0f380715e5 | next-20170929 |
+----------------------+------------+------------+------------+------------+---------------+
| boot_successes | 320 | 320 | 101 | 28 | 5 |
| boot_failures | 0 | 0 | 15 | 2 | 1 |
| WARNING:kernel_stack | 0 | 0 | 15 | 2 | 1 |
+----------------------+------------+------------+------------+------------+---------------+
[ 18.114577] init: tty6 main process (334) terminated with status 1
[ 18.115792] init: tty6 main process ended, respawning
[init] Using pid_max = 4096
[init] Started watchdog process, PID is 559
[main] Main thread is alive.
[ 20.993350] WARNING: kernel stack regs at 979f9f70 in kworker/u4:1:648 has bad 'bp' value (null)
[ 20.993353] unwind stack type:0 next_sp: (null) mask:0x2 graph_idx:0
[ 20.993355] 979f9e14: 00000000 ...
[ 20.993359] 979f9e18: 979f9e64 (0x979f9e64)
[ 20.993366] 979f9e1c: 9462d75f (__save_stack_trace+0x112/0x11c)
[ 20.993369] 979f9e20: 009f9e2c (0x9f9e2c)
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 045c5205823fc3cd4e5cafdedb2cc7d434424909 v4.13 --
git bisect bad e77d3b0c4a6a973872652601aae35d4ab1785fb4 # 16:56 B 15 3 15 17 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 42c8e86c9c3e15ac653c31d57b2f985579c2991d # 17:21 B 36 2 36 38 Merge tag 'trace-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
git bisect bad 77d0ab600af4bf5152bc98d0ac1edbc34c1e5fdf # 17:34 B 5 1 0 0 Merge tag 'gfs2-4.14.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
git bisect good 93cc1228b4a60584f3dadbd84f19f365bb945acb # 18:22 G 106 0 1 1 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad bf1d6b2c76eda86159519bf5c427b1fa8f51f733 # 18:34 B 13 4 0 0 Merge tag 'staging-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
git bisect bad f32c9e059eb6c12a4296003489b167f8eef9d201 # 18:56 B 7 1 0 0 Merge branch 'parisc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
git bisect good f57091767add2b79d76aac41b83b192d8ba1dce7 # 20:01 G 106 0 0 0 Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 24e700e291d52bd200212487e2b654c0aa3f07a2 # 20:15 B 5 2 0 0 Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 87cc037674342cbf6213829b2cc59bb71be60777 # 21:00 G 106 0 0 0 x86/ldttss: Clean up 32-bit descriptors
git bisect good 636a7598f65938e1dbacafec74c2e3acdc66bd4d # 21:24 G 108 0 0 0 x86/idt: Move APIC gate initialization to tables
git bisect good 1d792a678c759b3b06af197c2c250cea13f9c57b # 00:05 G 109 0 0 0 x86/idt: Remove the tracing IDT leftovers
git bisect good ef1d4deab953ecb1dfcf9f167043bda8b3f14a11 # 00:43 G 111 0 0 0 x86/eisa: Add missing include
git bisect good 5878d5d6fdef6447d73b0acc121ba445bef37f53 # 01:23 G 111 0 0 0 x86/xen: Get rid of paravirt op adjust_exception_frame
git bisect good c6ef89421e236d75693ae968d80d44a52409889d # 02:00 G 112 0 0 0 x86/idt: Fix the X86_TRAP_BP gate
# first bad commit: [24e700e291d52bd200212487e2b654c0aa3f07a2] Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good f57091767add2b79d76aac41b83b192d8ba1dce7 # 03:29 G 311 0 0 0 Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good c6ef89421e236d75693ae968d80d44a52409889d # 03:53 G 316 0 0 0 x86/idt: Fix the X86_TRAP_BP gate
# extra tests with CONFIG_DEBUG_INFO_REDUCED
git bisect bad 24e700e291d52bd200212487e2b654c0aa3f07a2 # 04:11 B 15 5 0 0 Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
# extra tests on HEAD of linux-devel/devel-catchup-201710021123
git bisect bad d2625554b1ebf980a064d9b3d577da4c28a7bd84 # 04:11 B 43 2 0 0 0day head guard for 'devel-catchup-201710021123'
# extra tests on tree/branch linus/master
git bisect bad 0f380715e51f5ff418cfccb4cd0d4fe4c48c3241 # 04:33 B 18 1 0 0 Merge tag 'sound-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
# extra tests on tree/branch linux-next/master
git bisect bad 1418b852174ad50b3cb4738b8801626aefdc0bd9 # 04:34 B 0 1 15 0 Add linux-next specific files for 20170929
---
0-DAY kernel test infrastructure Open Source Technology Center
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