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Message-ID: <574b0aa9.uByHhFFKGUV1AySn%fengguang.wu@intel.com>
Date: Sun, 29 May 2016 23:28:41 +0800
From: kernel test robot <fengguang.wu@...el.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: LKP <lkp@...org>, linux-kernel@...r.kernel.org,
LKML <linux-kernel@...r.kernel.org>, wfg@...ux.intel.com
Subject: [Revert "ppdev] 1701f68040: genirq: Flags mismatch irq 4.
00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
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 1701f680407c6cc05121566cef5293d33881fe71
Author: Linus Torvalds <torvalds@...ux-foundation.org>
AuthorDate: Fri Mar 25 09:02:13 2016 -0700
Commit: Linus Torvalds <torvalds@...ux-foundation.org>
CommitDate: Fri Mar 25 09:02:13 2016 -0700
Revert "ppdev: use new parport device model"
This reverts commit e7223f18603374d235d8bb0398532323e5f318b9.
It causes problems when a ppdev tries to register before the parport
driver has been registered with the device model. That will trigger the
BUG_ON(!drv->bus->p);
at drivers/base/driver.c:153. The call chain is
kernel_init ->
kernel_init_freeable ->
do_one_initcall ->
ppdev_init ->
__parport_register_driver ->
driver_register *BOOM*
Reported-by: kernel test robot <fengguang.wu@...el.com>
Reported-by: Ross Zwisler <zwisler@...il.com>
Reported-by: Petr Mladek <pmladek@...e.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
+------------------------------------------------------------+------------+------------+-------------+
| | 3b3b3bd977 | 1701f68040 | v4.6_052910 |
+------------------------------------------------------------+------------+------------+-------------+
| boot_successes | 0 | 0 | 0 |
| boot_failures | 92 | 26 | 13 |
| kernel_BUG_at_drivers/base/driver.c | 92 | | |
| invalid_opcode:#[##] | 92 | | |
| invalid_opcode:#[##]PREEMPT_PREEMPT_SMP_SMP | 92 | | |
| EIP_is_at_driver_register | 92 | | |
| Kernel_panic-not_syncing:Fatal_exception | 92 | | |
| backtrace:__parport_register_driver | 92 | | |
| backtrace:ppdev_init | 92 | | |
| backtrace:kernel_init_freeable | 92 | | |
| genirq:Flags_mismatch_irq##(serial)vs.#(goldfish_pdev_bus) | 0 | 26 | 13 |
| WARNING:at_arch/x86/mm/dump_pagetables.c:#note_page | 0 | 24 | 13 |
| backtrace:mark_rodata_ro | 0 | 24 | 13 |
| genirq:Flags_mismatch_irq | 0 | 1 | 2 |
| genirq:Flags_mismatch_irq##(serial)vs | 0 | 0 | 2 |
+------------------------------------------------------------+------------+------------+-------------+
[ 14.172557] Bluetooth: Starting self testing
[ 14.173765] Bluetooth: Finished self testing
[ 14.173765] Bluetooth: Finished self testing
[ 14.180471] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 14.180471] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)
[ 14.184737] Freeing unused kernel memory: 2312K (8239a000 - 825dc000)
[ 14.184737] Freeing unused kernel memory: 2312K (8239a000 - 825dc000)
[ 14.186874] Write protecting the kernel text: 12348k
git bisect start v4.6 v4.5 --
git bisect bad 7b367f5dba5c5162a7308e85d3fc9170b0cb3e5f # 14:23 0- 22 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 46e595a17dcf11404f713845ecb5b06b92a94e43 # 14:31 22+ 24 Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect good 70c5eb84738cba88e08526fa14e06418cb2bd473 # 14:36 22+ 23 Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
git bisect bad 8b8c877febd2610050758f1b7b97050a7d2dc794 # 17:12 0- 24 Merge tag 'hwmon-for-linus-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
git bisect bad c155c7492c9ab81f3d358a10eb4f29376ae53d85 # 19:50 0- 29 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
git bisect good 8407ef4685895759f111190d091394ef974f52fb # 22:27 22+ 48 Merge tag 'rtc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
git bisect good f98c2135f8e73f1cfba640dfb80beb0dad75f278 # 22:37 22+ 26 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
git bisect good 3b3b3bd97788e1f574c71f865d8465b00a6b8708 # 22:44 22+ 26 Merge tag 'firewire-update2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
git bisect bad 1701f680407c6cc05121566cef5293d33881fe71 # 22:51 0- 18 Revert "ppdev: use new parport device model"
# first bad commit: [1701f680407c6cc05121566cef5293d33881fe71] Revert "ppdev: use new parport device model"
git bisect good 3b3b3bd97788e1f574c71f865d8465b00a6b8708 # 22:53 66+ 92 Merge tag 'firewire-update2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
# extra tests with CONFIG_DEBUG_INFO_REDUCED
git bisect bad 1701f680407c6cc05121566cef5293d33881fe71 # 22:58 0- 13 Revert "ppdev: use new parport device model"
# extra tests on HEAD of linux-devel/devel-hourly-2016052910
git bisect bad cab701ace412fb3a265289932d84b4d0496608ef # 22:58 0- 13 0day head guard for 'devel-hourly-2016052910'
# extra tests on tree/branch linus/master
# extra tests with first bad commit reverted
# extra tests on tree/branch linus/master
# extra tests on tree/branch linux-next/master
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=quantal-core-i386.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu kvm64
-kernel $kernel
-initrd $initrd
-m 300
-smp 2
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
systemd.log_level=err
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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