[dm-devel] RE: [Bugme-new] [Bug 7158] New: Out of memory happen insnapshot

[kevin Cheng]

 Dear Alasdair:
    Thanks for your message. This moning I redo the OOM problem. 
Hardware eviroment is the same. And use chunk size 64KB. Aatech file have
the dm info and slab info .
This time we use dd command and dd 8GB file to lvm ,second time
out-of-memory happen.   Thanks!!


Regards,

Kevin

-----Original Message-----
From: Alasdair G Kergon [mailto:agk at redhat.com] 
Sent: Saturday, September 16, 2006 4:10 AM
To: kevin Cheng
Cc: 'device-mapper development'; 'Andrew Morton';
'bugme-daemon at kernel-bugs.osdl.org'
Subject: Re: [dm-devel] RE: [Bugme-new] [Bug 7158] New: Out of memory happen
insnapshot

I notice that the 'dmsetup table' output does not correspond to the
information you gave at the beginning of the bug.  (Different volume sizes -
16.5GB not 22GB - and different chunk size - 64KB not 8KB.)

Does that 'dmsetup status' output correspond to the time the system reached
OOM and tie in with the slabinfo you provided?

If not, please can you try to get fresh data from the time of the failure?
(both slabinfo and 'dmsetup status' taken at approximately the same time
when the system is in (or close to) OOM; it's OK to take 'dmsetup info' and
'dmsetup table' earlier in the test as they won't change during it)

Alasdair
--
agk at redhat.com
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