This is the mail archive of the
systemtap@sourceware.org
mailing list for the systemtap project.
[Bug runtime/6487] kernel.function("internal_add_timer") freezes system.
- From: "mhiramat at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 7 May 2008 15:45:39 -0000
- Subject: [Bug runtime/6487] kernel.function("internal_add_timer") freezes system.
- References: <20080507143402.6487.mhiramat@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From mhiramat at redhat dot com 2008-05-07 15:45 -------
(In reply to comment #1)
> By the way, curiously, below command did not freeze system.
>
> $ stap -e 'probe kernel.function("internal_add_timer") {}'
>
Oops, when I tried to stop it, it caused a soft lockup.
---
stap_9017fb37783d59da64aa2cc1999ac78d_247: systemtap: 0.7/0.131, base: f8b03000,
memory: 496426+25746+376+13600 data+text+ctx+net, probes: 1
BUG: soft lockup - CPU#1 stuck for 61s! [staprun:7749]
Pid: 7749, comm: staprun Not tainted (2.6.25 #4)
EIP: 0060:[<c0127259>] EFLAGS: 00000246 CPU: 1
EIP is at lock_timer_base+0x34/0x3e
EAX: f72b1634 EBX: 00000000 ECX: f5e4f600 EDX: f469bf1c
ESI: 00000000 EDI: f72b1634 EBP: f469bf14 ESP: f469bf04
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
CR0: 8005003b CR2: bfd26e38 CR3: 338e4000 CR4: 000006d0
DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
DR6: ffff4ff0 DR7: 00000400
[<c0127278>] try_to_del_timer_sync+0x15/0x4f
[<f8b066eb>] ? _stp_kfree+0x8/0xa [stap_9017fb37783d59da64aa2cc1999ac78d_247]
[<c01272bf>] del_timer_sync+0xd/0x18
[<f8b05017>] _stp_kill_time+0x35/0x6c [stap_9017fb37783d59da64aa2cc1999ac78d_247]
[<f8b07277>] _stp_transport_close+0x31/0x38
[stap_9017fb37783d59da64aa2cc1999ac78d_247]
[<f8b07286>] cleanup_module+0x8/0xa [stap_9017fb37783d59da64aa2cc1999ac78d_247]
[<c0141f35>] sys_delete_module+0x195/0x1d0
[<c010487e>] sysenter_past_esp+0x5f/0xa5
=======================
---
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6487
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.