Re: System hanging during dump

2008-11-02 Thread Peter Jeremy
Sorry for the late reply. On 2008-Oct-19 11:39:02 +0300, Kostik Belousov [EMAIL PROTECTED] wrote: I have built myself a looping 'ps -axl' which should let me gather more information if it does re-appear. (In the process, I've found that ps leaks memory, though that's not a problem until you

Re: System hanging during dump

2008-11-02 Thread Kostik Belousov
On Sun, Nov 02, 2008 at 07:37:05PM +1100, Peter Jeremy wrote: Sorry for the late reply. On 2008-Oct-19 11:39:02 +0300, Kostik Belousov [EMAIL PROTECTED] wrote: I have built myself a looping 'ps -axl' which should let me gather more information if it does re-appear. (In the process, I've

Re: System hanging during dump

2008-10-19 Thread Kostik Belousov
On Sun, Oct 19, 2008 at 02:21:04PM +1100, Peter Jeremy wrote: On 2008-Oct-15 21:37:36 +0100, Kris Kennaway [EMAIL PROTECTED] wrote: Peter, there was a bug causing dump to hang (completely unrelated to UFS2 snapshot generation) merged to RELENG_7 a month or so ago. Can you try updating?

Re: System hanging during dump

2008-10-18 Thread Peter Jeremy
On 2008-Oct-15 21:37:36 +0100, Kris Kennaway [EMAIL PROTECTED] wrote: Peter, there was a bug causing dump to hang (completely unrelated to UFS2 snapshot generation) merged to RELENG_7 a month or so ago. Can you try updating? Well, dump wasn't hanging, rather it was hanging the rest of the

System hanging during dump

2008-10-15 Thread Peter Jeremy
Last night, I attempted a full, compressed backup of my 181GB /home (on a PATA disk) to a remote system. The backup started at 2159 and everything appeared normal until about 0040 when the system became non-responsive and this lasted until the dump completed at 1033. This is the first full

Re: System hanging during dump

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 07:24:28PM +1100, Peter Jeremy wrote: Last night, I attempted a full, compressed backup of my 181GB /home (on a PATA disk) to a remote system. The backup started at 2159 and everything appeared normal until about 0040 when the system became non-responsive and this

Re: System hanging during dump

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 07:58:43PM +1100, Peter Jeremy wrote: On 2008-Oct-15 01:35:38 -0700, Jeremy Chadwick [EMAIL PROTECTED] wrote: On Wed, Oct 15, 2008 at 07:24:28PM +1100, Peter Jeremy wrote: Last night, I attempted a full, compressed backup of my 181GB /home (on a PATA disk) to a remote

Re: System hanging during dump

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 08:48:09PM +1100, Peter Jeremy wrote: On 2008-Oct-15 02:08:48 -0700, Jeremy Chadwick [EMAIL PROTECTED] wrote: On Wed, Oct 15, 2008 at 07:58:43PM +1100, Peter Jeremy wrote: On 2008-Oct-15 01:35:38 -0700, Jeremy Chadwick [EMAIL PROTECTED] wrote: On Wed, Oct 15, 2008 at

Re: System hanging during dump

2008-10-15 Thread Peter Jeremy
On 2008-Oct-15 01:35:38 -0700, Jeremy Chadwick [EMAIL PROTECTED] wrote: On Wed, Oct 15, 2008 at 07:24:28PM +1100, Peter Jeremy wrote: Last night, I attempted a full, compressed backup of my 181GB /home (on a PATA disk) to a remote system. The backup started at 2159 and everything appeared

Re: System hanging during dump

2008-10-15 Thread Peter Jeremy
On 2008-Oct-15 02:08:48 -0700, Jeremy Chadwick [EMAIL PROTECTED] wrote: On Wed, Oct 15, 2008 at 07:58:43PM +1100, Peter Jeremy wrote: On 2008-Oct-15 01:35:38 -0700, Jeremy Chadwick [EMAIL PROTECTED] wrote: On Wed, Oct 15, 2008 at 07:24:28PM +1100, Peter Jeremy wrote: Last night, I attempted a

Re: System hanging during dump

2008-10-15 Thread heliocentric
Based on progress reports from both dump and my fifo process, the snapshot removal began about 10 hours _after_ the system froze (during this time, dump wrote about 143GB). Given the timeline, it's fairly clear that neither mksnap_ffs nor the 'rm snapshot' were running at the time the system

Re: System hanging during dump

2008-10-15 Thread Alfred Perlstein
* [EMAIL PROTECTED] [EMAIL PROTECTED] [081015 12:00] wrote: Perhaps a 'show locks' with an 8-CURRENT kernel with WITNESS enabled will shed light on the problem? As most of the filesystem locking doesn't use lockmgr in 7-STABLE, it would be silent with that kernel. I might be wrong here, but

Re: System hanging during dump

2008-10-15 Thread Kris Kennaway
Jeremy Chadwick wrote: Has anyone else seen anything similar? It's a known problem documented in my Wiki -- see dump/restore. Note the part about UFS2 snapshot generation. I'm almost certain this is what you're describing. I don't know how you can say this so confidently without even

Re: System hanging during dump

2008-10-15 Thread heliocentric
On 10/15/08, Alfred Perlstein [EMAIL PROTECTED] wrote: * [EMAIL PROTECTED] [EMAIL PROTECTED] [081015 12:00] wrote: Perhaps a 'show locks' with an 8-CURRENT kernel with WITNESS enabled will shed light on the problem? As most of the filesystem locking doesn't use lockmgr in 7-STABLE, it would