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Date: Sat, 16 Aug 2014 18:43:05 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Lv Zheng <lv.zheng@...el.com>
Cc: Bob Moore <robert.moore@...el.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Len Brown <len.brown@...el.com>,
LKML <linux-kernel@...r.kernel.org>
Subject: [ACPI] WARNING: CPU: 0 PID: 0 at mm/early_ioremap.c:136
__early_ioremap()
Hi Lv,
Do you have any idea with this old WARNING? It's still occurring in
linux-next.
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x00000000000F0CF0 000014 (v00 BOCHS )
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: CPU: 0 PID: 0 at mm/early_ioremap.c:136 __early_ioremap+0x2c0/0x55a()
[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.16.0-wl-ath-02337-gfa3c32b #472
[ 0.000000] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 0.000000] 0000000000000009 ffffffff91203d30 ffffffff900f79e1 ffffffff91203d68
[ 0.000000] ffffffff8e2df444 0000000000000001 8000000000000563 0000000000000000
[ 0.000000] 00000000ea4edd58 0000000000000000 ffffffff91203d78 ffffffff8e2df58f
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff900f79e1>] dump_stack+0x2e/0x3e
[ 0.000000] [<ffffffff8e2df444>] warn_slowpath_common+0xb3/0xe5
[ 0.000000] [<ffffffff8e2df58f>] warn_slowpath_null+0x25/0x2f
[ 0.000000] [<ffffffff925d7908>] __early_ioremap+0x2c0/0x55a
[ 0.000000] [<ffffffff925d8138>] early_ioremap+0x1a/0x23
[ 0.000000] [<ffffffff925ad694>] __acpi_map_table+0x60/0x6e
[ 0.000000] [<ffffffff900d4b70>] acpi_os_map_iomem+0x46/0x30f
[ 0.000000] [<ffffffff900d4e49>] acpi_os_map_memory+0x10/0x19
[ 0.000000] [<ffffffff92615a51>] acpi_tb_parse_root_table+0x203/0x40f
[ 0.000000] [<ffffffff92615d55>] acpi_initialize_tables+0xf8/0x105
[ 0.000000] [<ffffffff926123e7>] acpi_table_init+0x7f/0x174
[ 0.000000] [<ffffffff925ae021>] acpi_boot_table_init+0x4e/0x15c
[ 0.000000] [<ffffffff9259e4b9>] setup_arch+0x110c/0x1382
[ 0.000000] [<ffffffff92597120>] ? early_idt_handlers+0x120/0x120
[ 0.000000] [<ffffffff92598525>] start_kernel+0xe6/0x9c7
[ 0.000000] [<ffffffff92597120>] ? early_idt_handlers+0x120/0x120
[ 0.000000] [<ffffffff9259777a>] x86_64_start_reservations+0x64/0x6d
[ 0.000000] [<ffffffff92597970>] x86_64_start_kernel+0x1ed/0x203
[ 0.000000] ---[ end trace d83042b019c2cfba ]---
[ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
git bisect bad fa3c32b9a48d3333d491ad8d1b24cbf8f9c452ca # 20:39 0- 10 0day head guard for 'devel-hourly-2014081417'
git bisect bad 19583ca584d6f574384e17fe7613dfaeadcdc4a6 # 20:49 7- 13 Linux 3.16
git bisect bad 19583ca584d6f574384e17fe7613dfaeadcdc4a6 # 20:49 0- 13 Linux 3.16
git bisect bad 1860e379875dfe7271c649058aeddffe5afd9d0d # 20:57 0- 9 Linux 3.15
git bisect bad 455c6fdbd219161bd09b1165f11699d6d73de11c # 21:07 0- 1 Linux 3.14
git bisect bad d8ec26d7f8287f5788a494f56e8814210f0e64be # 21:25 1- 27 Linux 3.13
git bisect bad 5e01dc7b26d9f24f39abace5da98ccbd6a5ceb52 # 21:37 5- 15 Linux 3.12
git bisect bad 6e4664525b1db28f8c4e1130957f70a94c19213e # 21:52 1- 18 Linux 3.11
git bisect bad 8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 # 21:58 0- 21 Linux 3.10
git bisect bad c1be5a5b1b355d40e6cf79cc979eb66dafa24ad1 # 22:03 0- 19 Linux 3.9
git bisect bad 19f949f52599ba7c3f67a5897ac6be14bfcb1200 # 22:14 0- 6 Linux 3.8
git bisect bad 29594404d7fe73cd80eaa4ee8c43dcc53970c60e # 22:31 0- 1 Linux 3.7
git bisect bad a0d271cbfed1dd50278c6b06bead3d00ba0a88f9 # 22:36 0- 4 Linux 3.6
git bisect bad 28a33cbc24e4256c143dce96c7d93bf423229f92 # 23:24 0- 9 Linux 3.5
git bisect bad 76e10d158efb6d4516018846f60c2ab5501900bc # 23:31 0- 1 Linux 3.4
git bisect bad c16fa4f2ad19908a47c63d8fa436a1178438c7e7 # 23:35 1- 2 Linux 3.3
git bisect bad 805a6af8dba5dfdd35ec35dc52ec0122400b2610 # 23:39 15- 31 Linux 3.2
git bisect bad c3b92c8787367a8bb53d57d9789b558f1295cc96 # 23:42 0- 3 Linux 3.1
git bisect bad 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe # 23:47 0- 9 Linux 3.0
git bisect bad 61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf # 23:55 0- 6 Linux 2.6.39
git bisect bad 521cb40b0c44418a4fd36dc633f575813d59a43d # 00:08 2- 4 Linux 2.6.38
git bisect bad 3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 # 00:12 0- 78 Linux 2.6.37
git bisect bad f6f94e2ab1b33f0082ac22d71f66385a60d8157f # 00:18 0- 2 Linux 2.6.36
git bisect bad c9d26423e56ce1ab4d786f92aebecf859d419293 # 01:55 0- 2 Merge tag 'pm+acpi-3.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
git bisect bad 7bef919141fc53b780070a0aec3ddd893eeece8f # 02:33 2- 3 Add linux-next specific files for 20140815
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
kvm=(
qemu-system-x86_64
-cpu kvm64
-enable-kvm
-kernel $kernel
-m 320
-smp 1
-net nic,vlan=1,model=e1000
-net user,vlan=1
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=10
softlockup_panic=1
nmi_watchdog=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
Thanks,
Fengguang
View attachment "config-3.16.0-wl-ath-02337-gfa3c32b" of type "text/plain" (89735 bytes)
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