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Date: Mon, 8 Sep 2014 17:12:48 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Jiri Kosina <jkosina@...e.cz>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jet Chen <jet.chen@...el.com>, Su Tao <tao.su@...el.com>,
Yuanhan Liu <yuanhan.liu@...el.com>, LKP <lkp@...org>,
linux-kernel@...r.kernel.org
Subject: [dummy-irq] genirq: Flags mismatch irq 0. 00000080 (dummy_irq) vs.
00015a20 (timer)
Hi Jiri,
This patch is found to trigger a call trace dump during kernel boot.
Can it be possibly fixed? Thanks!
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 54f69b92f037f4ff5779e5645ab714dee5b59095
Author: Jiri Kosina <jkosina@...e.cz>
AuthorDate: Thu Mar 21 00:21:21 2013 +0100
Commit: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CommitDate: Mon Mar 25 13:22:32 2013 -0700
dummy-irq: introduce a dummy IRQ handler driver
This module accepts a single 'irq' parameter, which it should register for.
Its sole purpose is to help with debugging of IRQ sharing problems, by
force-enabling IRQ that would otherwise be disabled.
Suggested-by: Alan Stern <stern@...land.harvard.edu>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Acked-by: Daniel Vetter <daniel.vetter@...ll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
+------------------------------------------------------+------------+------------+---------------+
| | 4c6e22b8a9 | 54f69b92f0 | next-20140905 |
+------------------------------------------------------+------------+------------+---------------+
| boot_successes | 0 | 0 | 0 |
| boot_failures | 80 | 20 | 21 |
| BUG:kernel_boot_hang | 80 | 20 | 8 |
| genirq:Flags_mismatch_irq.(dummy_irq)vs.(timer) | 0 | 20 | |
| backtrace:request_threaded_irq | 0 | 20 | |
| backtrace:dummy_irq_init | 0 | 20 | |
| backtrace:kernel_init_freeable | 0 | 20 | 20 |
| WARNING:at_include/linux/kref.h:kobject_get() | 0 | 0 | 20 |
| WARNING:at_kernel/locking/lockdep.c:__lock_acquire() | 0 | 0 | 20 |
| backtrace:platform_driver_unregister | 0 | 0 | 20 |
| backtrace:init_mac80211_hwsim | 0 | 0 | 20 |
| INFO:task_blocked_for_more_than_seconds | 0 | 0 | 13 |
| INFO:lockdep_is_turned_off | 0 | 0 | 13 |
| Kernel_panic-not_syncing:hung_task:blocked_tasks | 0 | 0 | 13 |
| backtrace:watchdog | 0 | 0 | 13 |
+------------------------------------------------------+------------+------------+---------------+
]
[ 1.929439] lp0: using parport0 (interrupt-driven).
[ 1.929439] lp0: using parport0 (interrupt-driven).
[ 1.933789] genirq: Flags mismatch irq 0. 00000080 (dummy_irq) vs. 00015a20 (timer)
[ 1.933789] genirq: Flags mismatch irq 0. 00000080 (dummy_irq) vs. 00015a20 (timer)
[ 1.942934] Pid: 1, comm: swapper Not tainted 3.9.0-rc2-00065-g54f69b9 #19
[ 1.942934] Pid: 1, comm: swapper Not tainted 3.9.0-rc2-00065-g54f69b9 #19
[ 1.943172] Call Trace:
[ 1.943172] Call Trace:
[ 1.943172] [<782a5f16>] __setup_irq+0x416/0x440
[ 1.943172] [<782a5f16>] __setup_irq+0x416/0x440
[ 1.943172] [<78458f30>] ? bmp085_i2c_probe+0x60/0x60
[ 1.943172] [<78458f30>] ? bmp085_i2c_probe+0x60/0x60
[ 1.943172] [<782a6134>] request_threaded_irq+0xa4/0x150
[ 1.943172] [<782a6134>] request_threaded_irq+0xa4/0x150
[ 1.943172] [<78cefd9b>] ? bmp085_i2c_driver_init+0x11/0x11
[ 1.943172] [<78cefd9b>] ? bmp085_i2c_driver_init+0x11/0x11
[ 1.943172] [<78cefdbf>] dummy_irq_init+0x24/0x5f
[ 1.943172] [<78cefdbf>] dummy_irq_init+0x24/0x5f
[ 1.943172] [<78cd49a2>] do_one_initcall+0x6a/0x10d
[ 1.943172] [<78cd49a2>] do_one_initcall+0x6a/0x10d
[ 1.943172] [<78cd4b25>] kernel_init_freeable+0xe0/0x153
[ 1.943172] [<78cd4b25>] kernel_init_freeable+0xe0/0x153
[ 1.943172] [<7884645b>] kernel_init+0xb/0x140
[ 1.943172] [<7884645b>] kernel_init+0xb/0x140
[ 1.943172] [<788521fb>] ret_from_kernel_thread+0x1b/0x30
[ 1.943172] [<788521fb>] ret_from_kernel_thread+0x1b/0x30
[ 1.943172] [<78846450>] ? rest_init+0xb0/0xb0
[ 1.943172] [<78846450>] ? rest_init+0xb0/0xb0
[ 1.993830] dummy-irq: cannot register IRQ 0
[ 1.993830] dummy-irq: cannot register IRQ 0
[ 1.999645] i2c-core: driver [apds9802als] using legacy suspend method
git bisect start v3.10 v3.9 --
git bisect bad ff89acc563a0bd49965674f56552ad6620415fe2 # 16:03 0- 20 Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
git bisect bad 24d0c2542b38963ae4d5171ecc0a2c1326c656bc # 16:03 0- 20 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
git bisect bad 151173e8ce9b95bbbbd7eedb9035cfaffbdb7cb2 # 16:03 0- 20 Merge tag 'for-v3.10' of git://git.infradead.org/battery-2.6
git bisect bad 6c24499f40d96bf07a85b709fb1bee5cea611a1d # 16:14 0- 13 tracing: Fix small merge bug
git bisect bad ec25e246b94a3233ab064994ef05a170bdba0e7c # 16:26 0- 7 Merge tag 'usb-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
git bisect good 8127b39e700f965a60fca443d23f3e171bf7c3a9 # 16:37 20+ 20 Merge tag 'fbdev-for-3.10' of git://gitorious.org/linux-omap-dss2/linux
git bisect bad 4f567cbc957a7cffd1a428a000d93bd903f42349 # 16:49 0- 20 Merge tag 'char-misc-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
git bisect good 000a74f41e601bc4e36a760aa42f219a019c5391 # 17:00 20+ 20 Merge tag 'pinctrl-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
git bisect good 92ddcf4a011a95dac98d3bbb0211a2fa42f13dc1 # 17:11 20+ 20 Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
git bisect bad b68301e9acd30f7fd63533a145f5e003e25ac9bd # 17:16 0- 1 mei: prefix me hardware specific functions with mei_me_
git bisect good b85c4a18f6543873eaa71772f6252bc4d403eeb2 # 17:28 20+ 20 sound/pcmcia: use module_pcmcia_driver() in pcmcia drivers
git bisect good 9ea03dec380208bfee015b25f253c2f58aba0071 # 17:39 20+ 20 memory: emif: setup LP settings on freq update
git bisect bad a6025a2a861845447adeb7a11c3043039959d3a1 # 17:42 0- 6 Drivers: hv: balloon: make local functions static
git bisect good 36caf3e525b24556f649aecd097cad73bde6f035 # 17:53 20+ 20 memory: emif: Fix the incorrect 'size' parameter in memcpy
git bisect good f57f27bc6ed7106276004dd224aaeeb160a5b4b8 # 18:06 20+ 20 memory: emif: Load the correct custom config values from dt
git bisect bad 54f69b92f037f4ff5779e5645ab714dee5b59095 # 18:08 0- 5 dummy-irq: introduce a dummy IRQ handler driver
git bisect good 4c6e22b8a93ef038b70661e590de250a09417af7 # 18:20 20+ 20 mei: add mei_irq_compl_handler function
# first bad commit: [54f69b92f037f4ff5779e5645ab714dee5b59095] dummy-irq: introduce a dummy IRQ handler driver
git bisect good 4c6e22b8a93ef038b70661e590de250a09417af7 # 18:32 60+ 80 mei: add mei_irq_compl_handler function
git bisect bad 92d88cb068a5dc66d53ef017999b2419b125f764 # 18:32 0- 21 Add linux-next specific files for 20140905
git bisect bad 92d88cb068a5dc66d53ef017999b2419b125f764 # 18:34 0- 21 Add linux-next specific files for 20140905
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=yocto-minimal-i386.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd
kvm=(
qemu-system-x86_64
-cpu kvm64
-enable-kvm
-kernel $kernel
-initrd $initrd
-m 320
-smp 1
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
Thanks,
Fengguang
View attachment "dmesg-yocto-lkp-nex04-164:20140907181726:i386-randconfig-j0-09070149::" of type "text/plain" (60033 bytes)
Download attachment "i386-randconfig-j0-09070149-92d88cb068a5dc66d53ef017999b2419b125f764-+-x-129689.log" of type "application/octet-stream" (121986 bytes)
View attachment "config-3.9.0-rc2-00065-g54f69b9" of type "text/plain" (74789 bytes)
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