From: Vegard Nossum <vegard.nossum@gmail.com>
To: Philippe Elie <phil.el@wanadoo.fr>, oprofile-list@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org
Subject: v2.6.26-rc7/oprofile: BUG: using smp_processor_id() in preemptible
Date: Sat, 21 Jun 2008 20:28:06 +0200 [thread overview]
Message-ID: <20080621182805.GA27417@damson.getinternet.no> (raw)
Hi,
I decided to try oprofile too :) Here's what I did:
# opcontrol --deinit
Stopping profiling.
Killing daemon.
Opening /proc/modules: No such file or directory
This was after having collected some data. The kernel is compiled without
module support. (I can provide config if necessary)
Vegard
opannotate[27361]: segfault at 0 ip 080d1f5b sp bfcbab6c error 4 in opannotate[8048000+117000]
BUG: using smp_processor_id() in preemptible [00000000] code: oprofiled/27301
caller is nmi_shutdown+0x11/0x60
Pid: 27301, comm: oprofiled Not tainted 2.6.26-rc7 #25
[<c028a90d>] debug_smp_processor_id+0xbd/0xc0
[<c045fba1>] nmi_shutdown+0x11/0x60
[<c045dd4a>] oprofile_shutdown+0x2a/0x60
[<c045eb70>] event_buffer_release+0x10/0x40
[<c0195f76>] __fput+0xb6/0x180
[<c01962e9>] fput+0x19/0x20
[<c0193297>] filp_close+0x47/0x70
[<c013869b>] put_files_struct+0x9b/0xb0
[<c01386f2>] exit_files+0x42/0x60
[<c013989d>] do_exit+0x16d/0x700
[<c014e1c6>] ? up_read+0x16/0x30
[<c0122953>] ? do_page_fault+0x2e3/0x700
[<c0194b90>] ? do_sync_write+0x0/0x110
[<c0139e61>] do_group_exit+0x31/0x90
[<c0139ecf>] sys_exit_group+0xf/0x20
[<c010831b>] sysenter_past_esp+0x78/0xd1
=======================
next reply other threads:[~2008-06-21 18:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-21 18:28 Vegard Nossum [this message]
2008-06-21 21:55 ` [PATCH] x86/oprofile: disable preemption in nmi_shutdown Vegard Nossum
2008-06-22 7:30 ` Johannes Weiner
2008-06-22 7:40 ` Vegard Nossum
2008-06-24 11:49 ` Ingo Molnar
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