On 11/27, Ananth N Mavinakayanahalli wrote:
On Thu, Nov 26, 2009 at 03:50:51PM +0100, Oleg Nesterov wrote:
Ananth, could you please run the test-case from the changelog
below ? I do not really expect this can help, but just in case.
Right, it doesn't help :-(
GDB shows that the parent
On Fri, Nov 27, 2009 at 06:46:27PM +0100, Veaceslav Falico wrote:
On Thu, Nov 26, 2009 at 11:37:03PM +0100, Oleg Nesterov wrote:
Could you look at this
ptrace-copy_process-should-disable-stepping.patch
http://marc.info/?l=linux-mm-commitsm=125789789322573
patch? It is not clear
On Thu, Nov 26, 2009 at 06:25:24PM +0100, Oleg Nesterov wrote:
On 11/26, Oleg Nesterov wrote:
On 11/26, Ananth N Mavinakayanahalli wrote:
step-fork: step-fork.c:56: handler_fail: Assertion `0' failed.
/bin/sh: line 5: 17325 Aborted ${dir}$tst
FAIL: step-fork
Veaceslav doesn't have the time to continue, but he gave me
access to rhts machine ;)
The kernel is 2.6.31.6 btw.
On 11/26, Veaceslav Falico wrote:
Just noticed the test-case fails in handler_fail(). Most probably
this means it is killed by SIGALRM because either parent or child
hang in
On 11/26, Oleg Nesterov wrote:
Then it loops inside __GI__IO_list_lock
0xfeacd24
0xfeacd28
0xfeacd2c
0xfeacd30
0xfeacd34
...
and so on forever,
Dump of assembler code for function __GI__IO_list_lock:
0x0feacce0 __GI__IO_list_lock+0:
Oleg Nesterov writes:
0xfeacd24
0xfeacd28
0xfeacd2c
0xfeacd30
0xfeacd34
...
and so on forever,
...
beg- 0x0feacd24 __GI__IO_list_lock+68: lwarx r0,0,r31
0x0feacd28 __GI__IO_list_lock+72: cmpwr0,r11
0x0feacd2c
Paul Mackerras pau...@samba.org writes:
I believe gdb has code to recognize this kind of sequence and run
through it without stopping until after the bne, precisely to avoid
this problem.
See gdb/rs6000-tdep.c:ppc_deal_with_atomic_sequence.
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
On Thu, Nov 26, 2009 at 03:50:51PM +0100, Oleg Nesterov wrote:
I changed the subject. This bug has nothing to do with utrace,
the kernel fails with or without these changes.
On 11/26, Ananth N Mavinakayanahalli wrote:
On Wed, Nov 25, 2009 at 04:40:52PM +0100, Oleg Nesterov wrote:
On
