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Message-ID: <5d08d0d9.iLjI1+nD2xAVNe/H%lkp@intel.com>
Date: Tue, 18 Jun 2019 19:54:01 +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: dfd001e50c ("x86/hpet: Use common init for legacy clockevent"):
BUG: kernel hang in boot stage
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.x86/hpet
commit dfd001e50c13ef71659eac2e04971ad23218fc6b
Author: Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Mon Jun 17 16:47:17 2019 +0200
Commit: Thomas Gleixner <tglx@...utronix.de>
CommitDate: Tue Jun 18 01:14:50 2019 +0200
x86/hpet: Use common init for legacy clockevent
Replace the static initialization of the legacy clockevent with runtime
initialization utilizing the common init function as the last preparatory
step to switch the legacy clockevent over to the channel 0 storage in
hpet_base.
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
5724812109 x86/hpet: Carve out shareable parts of init_one_hpet_msi_clockevent()
dfd001e50c x86/hpet: Use common init for legacy clockevent
286b15db78 x86/hpet: Use channel for legacy clockevent storage
dea8fc6983 Merge branch 'WIP.x86/hpet'
+-------------------------------+------------+------------+------------+------------+
| | 5724812109 | dfd001e50c | 286b15db78 | dea8fc6983 |
+-------------------------------+------------+------------+------------+------------+
| boot_successes | 29 | 0 | 0 | 4 |
| boot_failures | 2 | 11 | 11 | 12 |
| BUG:kernel_hang_in_test_stage | 1 | | | |
| RIP:__clear_user | 1 | | | |
| Mem-Info | 1 | | | |
| BUG:kernel_hang_in_boot_stage | 0 | 11 | 11 | 12 |
+-------------------------------+------------+------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <lkp@...el.com>
[ 3.335199] Speculative Store Bypass: Vulnerable
[ 3.335199] MDS: Vulnerable: Clear CPU buffers attempted, no microcode
[ 3.335199] Freeing SMP alternatives memory: 40K
[ 3.335199] Using local APIC timer interrupts.
[ 3.335199] calibrating APIC timer ...
BUG: kernel hang in boot stage
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start dea8fc6983eeccb6aa2ebe1763a5723968b4e885 788a024921c48985939f8241c1ff862a7374d8f9 --
git bisect good c7b0e2162559ecce4fa2dbf58c6a874d6d9e6fc7 # 15:57 G 10 0 1 1 Merge branch 'x86/core'
git bisect good f1155ae12ea4ac94d0535dc5bff02b6ba5d63625 # 15:58 G 10 0 1 12 Merge branch 'core/debugobjects'
git bisect good 0cff5403802fb04241283d5f06bbc44444ea1b79 # 16:17 G 11 0 2 2 Merge branch 'perf/urgent'
git bisect good 0ca41f69d78776b48e9cc081bd8a39333a5d1469 # 16:26 G 10 0 1 1 Merge branch 'perf/core'
git bisect good d2afd8a6c0eb41460ad34fb73df666b0d9a2c1f8 # 16:42 G 10 0 1 1 Merge branch 'x86/fpu'
git bisect good 35904ffcb3a538acf1cbc5e4edf473d471e1e001 # 17:21 G 10 0 1 1 Merge branch 'perf/core'
git bisect good e804119845f22ff6d98c29852764e2ea70e671e2 # 18:09 G 11 0 2 2 x86/hpet: Make naming consistent
git bisect good 7204a8bff110841b0bbad605fad37a25db90b387 # 18:41 G 10 0 3 3 x86/hpet: Rename variables to prepare for switching to channels
git bisect good dcaa2b10cf79ec8b11b1e5a77f478c5204f089ec # 18:57 G 11 0 4 4 x86/hpet: Consolidate clockevent functions
git bisect bad dfd001e50c13ef71659eac2e04971ad23218fc6b # 19:15 B 0 10 25 0 x86/hpet: Use common init for legacy clockevent
git bisect good 5724812109139327ff1370d3783efb5b22e9cc39 # 19:24 G 11 0 2 2 x86/hpet: Carve out shareable parts of init_one_hpet_msi_clockevent()
# first bad commit: [dfd001e50c13ef71659eac2e04971ad23218fc6b] x86/hpet: Use common init for legacy clockevent
git bisect good 5724812109139327ff1370d3783efb5b22e9cc39 # 19:26 G 31 0 2 4 x86/hpet: Carve out shareable parts of init_one_hpet_msi_clockevent()
# extra tests on HEAD of tip/master
git bisect bad dea8fc6983eeccb6aa2ebe1763a5723968b4e885 # 19:26 B 0 12 47 3 Merge branch 'WIP.x86/hpet'
# extra tests on tree/branch tip/WIP.x86/hpet
git bisect bad 286b15db78dc9741a47d082016dfc5fbcc31bd46 # 19:48 B 0 2 17 0 x86/hpet: Use channel for legacy clockevent storage
# extra tests on tree/branch tip/master
git bisect bad dea8fc6983eeccb6aa2ebe1763a5723968b4e885 # 19:53 B 0 12 47 3 Merge branch 'WIP.x86/hpet'
---
0-DAY kernel test infrastructure Open Source Technology Center
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