lkml.org 
[lkml]   [2007]   [Oct]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch 1/2] oProfile: oops when profile_pc() return ~0LU
On Mon, Oct 22, 2007 at 19:38:10 -0700, Linus Torvalds wrote:
>
> This set of two patches look ok by me, but I'd like sign-offs.. Also, were
> they tested and found to fix the problem by Sami?
>
> Linus

The previous patch I tested by Philippe, oprof-fix-profile_pc-use.patch,
worked ok, but with this latest patch oprofiled aborts.
But kernel does not oops or print msgs.

(gdb) bt
#0 0x00007f68d66fee65 in raise () from /lib64/libc.so.6
#1 0x00007f68d6700910 in abort () from /lib64/libc.so.6
#2 0x00007f68d7053974 in code_unknown (trans=0x7fff5bcd1c60) at opd_trans.c:140
#3 0x00007f68d7053eff in opd_process_samples (buffer=0x7f68d6ef3010 "��������\002", count=99349) at opd_trans.c:362
#4 0x00007f68d7050408 in opd_do_samples (opd_buf=0x7f68d6ef3010 "��������\002", count=794792) at init.c:131
#5 0x00007f68d70504e9 in opd_do_read (buf=0x7f68d6ef3010 "��������\002", size=1048576) at init.c:181
#6 0x00007f68d70506ca in opd_26_start () at init.c:265
#7 0x00007f68d7051468 in main (argc=9, argv=0x7fff5bcd1e98) at oprofiled.c:501

(gdb) frame 2
#2 0x00007f68d7053974 in code_unknown (trans=0x7fff5bcd1c60) at opd_trans.c:140
140 abort();

(gdb) p *trans
$1 = {buffer = 0x7f68d6ef3c38 "�)\200����", remaining = 98960, tracing = TRACING_OFF, current = 0x7f68d89dd010, last = 0x7f68d89dd010, anon = 0x0,
last_anon = 0x0, cookie = 18446604436320244048, app_cookie = 18446604436320244048, pc = 18446744071568019675, last_pc = 18446744071568019675,
event = 5, in_kernel = 1, cpu = 1, tid = 10074, tgid = 10074, embedded_offset = 18446744073709551615}
(gdb)

--
Do what you love because life is too short for anything else.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-10-23 12:13    [W:0.356 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site