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Message-ID: <47B1463E.1070809@linux.vnet.ibm.com>
Date: Tue, 12 Feb 2008 12:39:50 +0530
From: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
To: LKML <linux-kernel@...r.kernel.org>, linuxppc-dev@...abs.org,
Ingo Molnar <mingo@...e.hu>,
Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
Andy Whitcroft <apw@...dowen.org>,
Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: [BUG] 2.6.25-rc1-git1 softlockup while bootup on powerpc
Hi,
While booting with the 2.6.25-rc1-git1 kernel on the powerbox
the softlockup is seen, with following trace.
insmod used greatest stack depth: 5568 bytes left
Loading st.ko module
BUG: soft lockup - CPU#1 stuck for 61s! [insmod:377]
NIP: c0000000001b172c LR: c0000000001a6f00 CTR: 0000000000000034
REGS: c00000077cb2b8a0 TRAP: 0901 Not tainted (2.6.25-rc1-git1-autotest)
MSR: 8000000000009032 <EE,ME,IR,DR> CR: 84004084 XER: 20000000
TASK = c00000077cb2f0e0[377] 'insmod' THREAD: c00000077cb28000 CPU: 1
GPR00: c00000077e1a0460 c00000077cb2bb20 c00000000053ba08 0000000000000002
GPR04: f000000000000000 c00000077c880240 000000000000003c 000000000000000b
GPR08: 1000000000000000 c00000077e1a0708 0000000000000002 000000000000000c
GPR12: c00000077e1a0690 c000000000484d00
NIP [c0000000001b172c] .radix_tree_gang_lookup+0xdc/0x1e4
LR [c0000000001a6f00] .call_for_each_cic+0x50/0x10c
Call Trace:
[c00000077cb2bb20] [c0000000001a6f60] .call_for_each_cic+0xb0/0x10c (unreliable)
[c00000077cb2bc60] [c00000000019ecd8] .exit_io_context+0xf0/0x110
[c00000077cb2bcf0] [c00000000006254c] .do_exit+0x820/0x850
[c00000077cb2bda0] [c000000000062648] .do_group_exit+0xcc/0xe8
[c00000077cb2be30] [c00000000000872c] syscall_exit+0x0/0x40
Instruction dump:
4800007c 7cc007b4 7ca90436 7f680036 792b06a0 7c8800d0 79691f24 200b0040
7c0903a6 7d296214 39290018 e8090000 <7caa2038> 39290008 2fa00000 409e0018
INFO: task insmod:385 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
insmod D 000000001000e144 12144 385 1
Call Trace:
[c00000077cb97600] [c0000000008fc600] 0xc0000000008fc600 (unreliable)
[c00000077cb977d0] [c000000000010c7c] .__switch_to+0x11c/0x154
[c00000077cb97860] [c0000000003455e0] .schedule+0x5d0/0x6b0
[c00000077cb97950] [c000000000345920] .schedule_timeout+0x3c/0xe8
[c00000077cb97a20] [c000000000344e7c] .wait_for_common+0x150/0x22c
[c00000077cb97ae0] [c00000000008f5ac] .__stop_machine_run+0xbc/0xf0
[c00000077cb97bb0] [c00000000008f61c] .stop_machine_run+0x3c/0x80
[c00000077cb97c50] [c00000000008989c] .sys_init_module+0x14e4/0x1af4
[c00000077cb97e30] [c00000000000872c] syscall_exit+0x0/0x40
-- 0:conmux-control -- time-stamp -- Feb/11/08 14:30:10 --
INFO: task insmod:385 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
insmod D 000000001000e144 12144 385 1
Call Trace:
[c00000077cb97600] [c0000000008fc600] 0xc0000000008fc600 (unreliable)
[c00000077cb977d0] [c000000000010c7c] .__switch_to+0x11c/0x154
[c00000077cb97860] [c0000000003455e0] .schedule+0x5d0/0x6b0
[c00000077cb97950] [c000000000345920] .schedule_timeout+0x3c/0xe8
[c00000077cb97a20] [c000000000344e7c] .wait_for_common+0x150/0x22c
[c00000077cb97ae0] [c00000000008f5ac] .__stop_machine_run+0xbc/0xf0
[c00000077cb97bb0] [c00000000008f61c] .stop_machine_run+0x3c/0x80
[c00000077cb97c50] [c00000000008989c] .sys_init_module+0x14e4/0x1af4
[c00000077cb97e30] [c00000000000872c] syscall_exit+0x0/0x40
-- 0:conmux-control -- time-stamp -- Feb/11/08 14:32:19 --
INFO: task insmod:385 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
insmod D 000000001000e144 12144 385 1
Call Trace:
[c00000077cb97600] [c0000000008fc600] 0xc0000000008fc600 (unreliable)
[c00000077cb977d0] [c000000000010c7c] .__switch_to+0x11c/0x154
[c00000077cb97860] [c0000000003455e0] .schedule+0x5d0/0x6b0
[c00000077cb97950] [c000000000345920] .schedule_timeout+0x3c/0xe8
[c00000077cb97a20] [c000000000344e7c] .wait_for_common+0x150/0x22c
[c00000077cb97ae0] [c00000000008f5ac] .__stop_machine_run+0xbc/0xf0
[c00000077cb97bb0] [c00000000008f61c] .stop_machine_run+0x3c/0x80
[c00000077cb97c50] [c00000000008989c] .sys_init_module+0x14e4/0x1af4
[c00000077cb97e30] [c00000000000872c] syscall_exit+0x0/0x40
-- 0:conmux-control -- time-stamp -- Feb/11/08 14:34:28 --
INFO: task insmod:385 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
insmod D 000000001000e144 12144 385 1
Call Trace:
[c00000077cb97600] [c0000000008fc600] 0xc0000000008fc600 (unreliable)
[c00000077cb977d0] [c000000000010c7c] .__switch_to+0x11c/0x154
[c00000077cb97860] [c0000000003455e0] .schedule+0x5d0/0x6b0
[c00000077cb97950] [c000000000345920] .schedule_timeout+0x3c/0xe8
[c00000077cb97a20] [c000000000344e7c] .wait_for_common+0x150/0x22c
[c00000077cb97ae0] [c00000000008f5ac] .__stop_machine_run+0xbc/0xf0
[c00000077cb97bb0] [c00000000008f61c] .stop_machine_run+0x3c/0x80
[c00000077cb97c50] [c00000000008989c] .sys_init_module+0x14e4/0x1af4
[c00000077cb97e30] [c00000000000872c] syscall_exit+0x0/0x40
-- 0:conmux-control -- time-stamp -- Feb/11/08 14:36:37 --
INFO: task insmod:385 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
insmod D 000000001000e144 12144 385 1
Call Trace:
[c00000077cb97600] [c0000000008fc600] 0xc0000000008fc600 (unreliable)
[c00000077cb977d0] [c000000000010c7c] .__switch_to+0x11c/0x154
[c00000077cb97860] [c0000000003455e0] .schedule+0x5d0/0x6b0
[c00000077cb97950] [c000000000345920] .schedule_timeout+0x3c/0xe8
[c00000077cb97a20] [c000000000344e7c] .wait_for_common+0x150/0x22c
[c00000077cb97ae0] [c00000000008f5ac] .__stop_machine_run+0xbc/0xf0
[c00000077cb97bb0] [c00000000008f61c] .stop_machine_run+0x3c/0x80
[c00000077cb97c50] [c00000000008989c] .sys_init_module+0x14e4/0x1af4
[c00000077cb97e30] [c00000000000872c] syscall_exit+0x0/0x40
-- 0:conmux-control -- time-stamp -- Feb/11/08 14:38:46 --
INFO: task insmod:385 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
insmod D 000000001000e144 12144 385 1
Call Trace:
[c00000077cb97600] [c0000000008fc600] 0xc0000000008fc600 (unreliable)
[c00000077cb977d0] [c000000000010c7c] .__switch_to+0x11c/0x154
[c00000077cb97860] [c0000000003455e0] .schedule+0x5d0/0x6b0
[c00000077cb97950] [c000000000345920] .schedule_timeout+0x3c/0xe8
[c00000077cb97a20] [c000000000344e7c] .wait_for_common+0x150/0x22c
[c00000077cb97ae0] [c00000000008f5ac] .__stop_machine_run+0xbc/0xf0
[c00000077cb97bb0] [c00000000008f61c] .stop_machine_run+0x3c/0x80
[c00000077cb97c50] [c00000000008989c] .sys_init_module+0x14e4/0x1af4
[c00000077cb97e30] [c00000000000872c] syscall_exit+0x0/0x40
-- 0:conmux-control -- time-stamp -- Feb/11/08 14:40:54 --
INFO: task insmod:385 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
insmod D 000000001000e144 12144 385 1
Call Trace:
[c00000077cb97600] [c0000000008fc600] 0xc0000000008fc600 (unreliable)
[c00000077cb977d0] [c000000000010c7c] .__switch_to+0x11c/0x154
[c00000077cb97860] [c0000000003455e0] .schedule+0x5d0/0x6b0
[c00000077cb97950] [c000000000345920] .schedule_timeout+0x3c/0xe8
[c00000077cb97a20] [c000000000344e7c] .wait_for_common+0x150/0x22c
[c00000077cb97ae0] [c00000000008f5ac] .__stop_machine_run+0xbc/0xf0
[c00000077cb97bb0] [c00000000008f61c] .stop_machine_run+0x3c/0x80
[c00000077cb97c50] [c00000000008989c] .sys_init_module+0x14e4/0x1af4
[c00000077cb97e30] [c00000000000872c] syscall_exit+0x0/0x40
-- 0:conmux-control -- time-stamp -- Feb/11/08 14:43:04 --
INFO: task insmod:385 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
insmod D 000000001000e144 12144 385 1
Call Trace:
[c00000077cb97600] [c0000000008fc600] 0xc0000000008fc600 (unreliable)
[c00000077cb977d0] [c000000000010c7c] .__switch_to+0x11c/0x154
[c00000077cb97860] [c0000000003455e0] .schedule+0x5d0/0x6b0
[c00000077cb97950] [c000000000345920] .schedule_timeout+0x3c/0xe8
[c00000077cb97a20] [c000000000344e7c] .wait_for_common+0x150/0x22c
[c00000077cb97ae0] [c00000000008f5ac] .__stop_machine_run+0xbc/0xf0
[c00000077cb97bb0] [c00000000008f61c] .stop_machine_run+0x3c/0x80
[c00000077cb97c50] [c00000000008989c] .sys_init_module+0x14e4/0x1af4
[c00000077cb97e30] [c00000000000872c] syscall_exit+0x0/0x40
--
Thanks & Regards,
Kamalesh Babulal,
Linux Technology Center,
IBM, ISTL.
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