On Sat, Apr 07, 2007 at 03:59:02PM +0200, Florian C. Smeets wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Pawel Jakub Dawidek wrote: > > On Sat, Apr 07, 2007 at 04:56:45AM +0200, Bernd Walter wrote: > >> My sandbox just has 128MB RAM so kmem was set to ~40M. > >> After raising kmem to 80M it survived copying the file, but paniced > >> again while tar -xvzf the file into the same pool. > >> vfs.zfs.vdev.cache.size is unchanged at 10M. > > > > 128MB RAM of suggested minimum in ZFS requirements, but it may be not > > enough... Minimum of ARC is set to 1/8 of all memory or 64MB (whichever > > is more). Could you locate these lines in > > sys/contrib/opensolaris/uts/common/fs/zfs/arc.c file: > > > > /* set min cache to 1/32 of all memory, or 64MB, whichever is more */ > > arc_c_min = MAX(arc_c / 4, 64<<20); > > > > Change 64 to eg. 32, recompile and retest? > > > > Hi Pawel, > > i had the same problems like Bernd while trying to copy the src tree to > a ZFS volume. I have 384MB RAM but i got the same "kmem_map: too small" > panic. I compiled my kernel like you proposed and now i am able to copy > anything to the volume without panic :-) I had increased RAM to 384 and still had a panic with default kmem (IIRC around 100M) and even increasing kmem to 160M did help a long time, but still produced the panic after a while. I don't think 64M applies here as the real limit. -- B.Walter http://www.bwct.de http://www.fizon.de bernd_at_bwct.de info_at_bwct.de support_at_fizon.deReceived on Sat Apr 07 2007 - 14:58:16 UTC
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