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From: Andre Noll <maan@systemlinux.org>
To: Sage Weil <sage@newdream.net>
Cc: ceph-devel@vger.kernel.org
Subject: Re: osd: terminate called after throwing an instance of 'std::bad_alloc'
Date: Mon, 7 Jun 2010 10:07:54 +0200	[thread overview]
Message-ID: <20100607080754.GU1211@skl-net.de> (raw)
In-Reply-To: <Pine.LNX.4.64.1006040944331.2384@cobra.newdream.net>

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On Fri, Jun 04, 09:48, Sage Weil Wrote
> On Fri, 4 Jun 2010, Andre Noll wrote:
> > On Wed, Jun 02, 11:19, Sage Weil Wrote
> > > Okay, it looks like there is a corrupt PG log.  Can you tar up the 
> > > $osd_data/current/meta directory, and then 'f 8' and 'p /x info.pgid' from 
> > > gdb (to figure out which pg it's loading)?
> > 
> > It's in decode_nohead():
> > 
> > 	...
> > 	Program received signal SIGABRT, Aborted.
> > 	[Switching to Thread 0x7ff115b566f0 (LWP 5045)]
> > 	0x00007ff1146e9095 in raise () from /lib/libc.so.6
> > 	(gdb) f 8
> > 	#8  0x0000000000540920 in PG::read_log (this=0x7ff1104b6460,
> > 	store=<value optimized out>) at ./include/cstring.h:120
> > 	120         _data = new char[_len + 1];
> > 	(gdb) p /x info.pgid
> > 	$1 = {v = {preferred = {v = 0xffff}, ps = {v = 0x1bf}, pool = {v = 0x0}}}
> 
> The pgid's format like $pool.$ps[p$preferred] (where the preferred bit 
> only shows up if >= 0).  In hex.  So the pgid above is 0.1bf, and the 
> corrupted log should be current/meta/pglog_0.1bf_0.  If you send me that 
> file (off list) I can see what the corruption looks like.

Thanks for the explanation. I'll send it off-list in a minute.
It's 361K large.

> If you want to try to bring the osd up without that pg, you can move that 
> pglog file and current/0.1bf to some other temp directory and restart 
> cosd.

Did not work. It recreated that file and then crashed for the same
reason. The gdb output is identical, but the file contents have
changed. I'll send the new pglog_0.1bf_0 as well.

Thanks
Andre
-- 
The only person who always got his work done by Friday was Robinson Crusoe

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  reply	other threads:[~2010-06-07  8:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-31 12:51 osd: terminate called after throwing an instance of 'std::bad_alloc' Andre Noll
2010-06-01 17:28 ` Sage Weil
2010-06-02  8:10   ` Andre Noll
2010-06-02 18:19     ` Sage Weil
2010-06-04  8:45       ` Andre Noll
2010-06-04 16:48         ` Sage Weil
2010-06-07  8:07           ` Andre Noll [this message]
     [not found]             ` <20100607080932.GV1211@skl-net.de>
     [not found]               ` <Pine.LNX.4.64.1006071016470.20365@cobra.newdream.net>
     [not found]                 ` <20100608122838.GA9152@skl-net.de>
2010-06-09  5:54                   ` Sage Weil
2010-06-09  8:16                     ` Andre Noll
2010-06-09 17:29                       ` Sage Weil
2010-06-14  8:48                         ` Andre Noll

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