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Message-ID: <5cb3de1c.z2gsc6k98SNP+K0e%lkp@intel.com>
Date: Mon, 15 Apr 2019 09:27:56 +0800
From: kernel test robot <lkp@...el.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKP <lkp@...org>, linux-kernel@...r.kernel.org, philip.li@...el.com
Subject: 63c35ea6b8 ("x86/stacktrace: Use common infrastructure"): BUG:
kernel hang in early-boot stage, last printk: early console in setup code
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.core/stacktrace
commit 63c35ea6b829a0f98d307a8dec038095681ecd13
Author: Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Thu Apr 11 12:52:04 2019 +0200
Commit: Thomas Gleixner <tglx@...utronix.de>
CommitDate: Sun Apr 14 22:44:04 2019 +0200
x86/stacktrace: Use common infrastructure
Replace the stack_trace_save*() functions with the new arch_stack_walk()
interfaces.
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
0245694164 stacktrace: Provide common infrastructure
63c35ea6b8 x86/stacktrace: Use common infrastructure
13adc4ee15 Merge branch 'WIP.locking/core'
+-----------------------------------------------------------------------------+------------+------------+------------+
| | 0245694164 | 63c35ea6b8 | 13adc4ee15 |
+-----------------------------------------------------------------------------+------------+------------+------------+
| boot_successes | 32 | 0 | 11 |
| boot_failures | 1 | 13 | |
| BUG:kernel_reboot-without-warning_in_test_stage | 1 | | |
| BUG:kernel_hang_in_early-boot_stage,last_printk:early_console_in_setup_code | 0 | 13 | |
+-----------------------------------------------------------------------------+------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <lkp@...el.com>
early console in setup code
BUG: kernel hang in early-boot stage, last printk: early console in setup code
Linux version 5.1.0-rc4-00302-g63c35ea #39
Command line: root=/dev/ram0 hung_task_panic=1 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 drbd.minor_count=8 systemd.log_level=err ignore_loglevel console=tty0 earlyprintk=ttyS0,115200 console=ttyS0,115200 vga=normal rw link=/cephfs/kbuild/run-queue/kvm/i386-randconfig-n3-201915/tip:WIP.core:stacktrace:63c35ea6b829a0f98d307a8dec038095681ecd13/.vmlinuz-63c35ea6b829a0f98d307a8dec038095681ecd13-20190415064514-2:yocto-vm-yocto-219 branch=tip/WIP.core/stacktrace BOOT_IMAGE=/pkg/linux/i386-randconfig-n3-201915/gcc-7/63c35ea6b829a0f98d307a8dec038095681ecd13/vmlinuz-5.1.0-rc4-00302-g63c35ea drbd.minor_count=8 rcuperf.shutdown=0
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 63c35ea6b829a0f98d307a8dec038095681ecd13 4443f8e6ac7755cd775c70d08be8042dc2f936cb --
git bisect good 9da0899ac5cf06270762b0b530e7cd49e1a97759 # 08:27 G 10 0 0 0 latency_top: Simplify stack trace handling
git bisect good 6f9fad69e30495d9b3c62cf696b7abf68192a400 # 08:33 G 10 0 0 0 lockdep: Remove unused trace argument from print_circular_bug()
git bisect good c6b01c6ce59d329cd1f749faec3034809792d4c4 # 08:40 G 10 0 0 0 tracing: Simplify stack trace retrieval
git bisect good 150bf3fe05c88b76bea37253b9993dd89e58dc2f # 08:47 G 11 0 0 0 stacktrace: Remove obsolete functions
git bisect good 5468565682413ae5a788b1875bbd7e762c910cf9 # 08:53 G 10 0 1 1 lib/stackdepot: Remove obsolete functions
git bisect good 0245694164748e86f0ca565c2d519db1c968dcb1 # 09:06 G 11 0 0 0 stacktrace: Provide common infrastructure
# first bad commit: [63c35ea6b829a0f98d307a8dec038095681ecd13] x86/stacktrace: Use common infrastructure
git bisect good 0245694164748e86f0ca565c2d519db1c968dcb1 # 09:12 G 31 0 0 1 stacktrace: Provide common infrastructure
# extra tests with debug options
# extra tests on HEAD of tip/WIP.core/stacktrace
git bisect bad 63c35ea6b829a0f98d307a8dec038095681ecd13 # 09:15 B 0 13 30 0 x86/stacktrace: Use common infrastructure
# extra tests on tree/branch tip/WIP.core/stacktrace
git bisect bad 63c35ea6b829a0f98d307a8dec038095681ecd13 # 09:15 B 0 13 30 0 x86/stacktrace: Use common infrastructure
# extra tests with first bad commit reverted
git bisect good 0d34fc29df83b253f1289f69a8cea220358f651b # 09:23 G 11 0 0 0 Revert "x86/stacktrace: Use common infrastructure"
# extra tests on tree/branch tip/master
git bisect good 13adc4ee15853b456b55c061aa081df482a90fc1 # 09:27 G 10 0 0 0 Merge branch 'WIP.locking/core'
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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