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Date: Tue, 30 Sep 2014 15:46:32 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: 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: [x86, irq] WARNING: CPU: 0 PID: 0 at
arch/x86/kernel/cpu/common.c:1430 warn_pre_alternatives()
Hi Gerry,
0day kernel testing robot got the below dmesg and the first bad commit is
https://github.com/jiangliu/linux.git irqdomain/p3v1
commit f2bb95f78a694f575ef41a9f65c003ee934fc263
Author: Jiang Liu <jiang.liu@...ux.intel.com>
AuthorDate: Wed Jun 25 14:16:18 2014 +0800
Commit: Jiang Liu <jiang.liu@...ux.intel.com>
CommitDate: Fri Sep 26 19:09:42 2014 +0800
x86, irq: Move IRQ initialization routines from io_apic.c into vector.c
Move IRQ initialization routines from io_apic.c into vector.c,
preparing for enabling hierarchy irqdomain.
Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
Attached dmesg for the parent commit, too, to help confirm whether it is a noise error.
It looks to me that the OOM errors in the parent commit is irrelevant.
+------------------------------------------------------------------+------------+------------+------------------+
| | 9d24b890d0 | f2bb95f78a | v3.17-rc6_092700 |
+------------------------------------------------------------------+------------+------------+------------------+
| boot_successes | 43 | 0 | 0 |
| boot_failures | 37 | 20 | 11 |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 37 | | |
| backtrace:serio_handle_event | 28 | | |
| backtrace:do_fork | 4 | | |
| backtrace:kthreadd | 4 | | |
| backtrace:rcu_torture_stats | 5 | | |
| WARNING:at_arch/x86/kernel/cpu/common.c:warn_pre_alternatives() | 0 | 20 | 11 |
| BUG:unable_to_handle_kernel | 0 | 20 | 11 |
| Oops | 0 | 20 | 11 |
| EIP_is_at_setup_irq | 0 | 20 | 11 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 20 | 11 |
+------------------------------------------------------------------+------------+------------+------------------+
[ 0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok.
[ 0.000000] NR_IRQS:16 nr_irqs:16 0
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/cpu/common.c:1430 warn_pre_alternatives+0x17/0x20()
[ 0.000000] You're using static_cpu_has before alternatives have run!
[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.17.0-rc6-00208-gf2bb95f #2
[ 0.000000] c1a91eac c1a91eac c1a91e80 c175a430 c1a91e9c c1034c47 00000596 c100fb87
[ 0.000000] 0000003a c1a91f64 c1026fc0 c1a91eb4 c1034cb6 00000009 c1a91eac c198ecbc
[ 0.000000] c1a91ec8 c1a91ec8 c100fb87 c198ec6c 00000596 c198ecbc c1a91f44 c1029a4d
[ 0.000000] Call Trace:
[ 0.000000] [<c175a430>] dump_stack+0x16/0x18
[ 0.000000] [<c1034c47>] warn_slowpath_common+0x57/0x70
[ 0.000000] [<c100fb87>] ? warn_pre_alternatives+0x17/0x20
[ 0.000000] [<c1026fc0>] ? kvm_read_and_reset_pf_reason+0x20/0x20
[ 0.000000] [<c1034cb6>] warn_slowpath_fmt+0x26/0x30
[ 0.000000] [<c100fb87>] warn_pre_alternatives+0x17/0x20
[ 0.000000] [<c1029a4d>] __do_page_fault+0x19d/0x4a0
[ 0.000000] [<c105a657>] ? __lock_acquire+0x2f7/0xcb0
[ 0.000000] [<c1026fc0>] ? kvm_read_and_reset_pf_reason+0x20/0x20
[ 0.000000] [<c1029ee4>] do_page_fault+0x24/0x40
[ 0.000000] [<c1026fd2>] do_async_page_fault+0x12/0x80
[ 0.000000] [<c17618bd>] error_code+0x65/0x6c
[ 0.000000] [<c13c0000>] ? sg_scsi_ioctl+0x150/0x3a0
[ 0.000000] [<c1068edf>] ? setup_irq+0xf/0x80
[ 0.000000] [<c1c977ae>] native_init_IRQ+0x2ee/0x2fc
[ 0.000000] [<c1c974be>] init_IRQ+0x1f/0x21
[ 0.000000] [<c1c94976>] start_kernel+0x23b/0x389
[ 0.000000] [<c1c942cb>] i386_start_kernel+0x79/0x7d
[ 0.000000] ---[ end trace 4d5ff9f2f68c4233 ]---
[ 0.000000] BUG: unable to handle kernel NULL pointer dereference at 0000003a
git bisect start fe34ad1c7f6455ab6827d4cc84224b7f57eec1eb 0f33be009b89d2268e94194dc4fd01a7851b6d51 --
git bisect bad a3f28bd4c220897d58cba325209d64613f8a6d0a # 14:05 0- 20 Merge 'arm-soc/sunxi/rtc' into devel-hourly-2014092700
git bisect good a25102b03066c1e532fb15f9dc96fd4560e27718 # 14:11 20+ 12 Merge 'tomeu/clk-constraints' into devel-hourly-2014092700
git bisect good c3d8a4dadca4527de0c294fb3befba882fc4f116 # 14:15 20+ 7 Merge 'ljones-mfd/for-mfd-next' into devel-hourly-2014092700
git bisect bad c42622ecfc1b3ca7110002aa37fa37e0bc6e2bbf # 14:20 0- 10 Merge 'jiangliu/irqdomain/p1v2' into devel-hourly-2014092700
git bisect good 07c59feab0eab9e51d0306e5f254e6ec148b568b # 14:31 20+ 7 Merge 'gpio/devel' into devel-hourly-2014092700
git bisect good 452b6361c4d9baf6940adb7b1316e0f386c39799 # 14:48 20+ 9 Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
git bisect good 424fff7ae225da25606f2ba6aafc5df3df1e8b7f # 14:57 20+ 8 x86, irq: Kill fourth parameter of IO_APIC_get_PCI_irq_vector()
git bisect good 65bc21db96059f859a4e88676578bb485f2eb1b0 # 15:05 20+ 14 x86, irq: Move PCI MSI related code from io_apic.c into msi.c
git bisect bad 9a55fc663ec935de7912d8a649abdc6351bef2b9 # 15:08 0- 20 x86, irq: Make MSI and HT_IRQ indepenent of X86_IO_APIC
git bisect good 9d24b890d00698320c804c335673a5a5dad177bb # 16:40 20+ 8 x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h
git bisect bad f2bb95f78a694f575ef41a9f65c003ee934fc263 # 18:44 0- 20 x86, irq: Move IRQ initialization routines from io_apic.c into vector.c
# first bad commit: [f2bb95f78a694f575ef41a9f65c003ee934fc263] x86, irq: Move IRQ initialization routines from io_apic.c into vector.c
git bisect good 9d24b890d00698320c804c335673a5a5dad177bb # 18:48 60+ 37 x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h
git bisect bad fe34ad1c7f6455ab6827d4cc84224b7f57eec1eb # 18:48 0- 11 0day head guard for 'devel-hourly-2014092700'
git bisect good 1e3827bf8aebe29af2d6e49b89d85dfae4d0154f # 23:29 60+ 27 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
git bisect good 4d8426f9ac601db2a64fa7be64051d02b9c9fe01 # 00:23 60+ 22 Add linux-next specific files for 20140926
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
kvm=(
qemu-system-x86_64
-cpu kvm64
-enable-kvm
-kernel $kernel
-m 320
-smp 2
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
Thanks,
Fengguang
View attachment "dmesg-quantal-ivb41-83:20140928184420:i386-randconfig-c1-09270045::" of type "text/plain" (11522 bytes)
View attachment "dmesg-quantal-ivb41-100:20140928184658:i386-randconfig-c1-09270045::" of type "text/plain" (61572 bytes)
Download attachment "i386-randconfig-c1-09270045-fe34ad1c7f6455ab6827d4cc84224b7f57eec1eb-WARNING:---at----warn_pre_alternatives+-x-34281.log" of type "application/octet-stream" (44507 bytes)
View attachment "config-3.17.0-rc6-00208-gf2bb95f" of type "text/plain" (79297 bytes)
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