ZFS and disk naming change (ex. da0->da4)

[Pawel Jakub Dawidek]

On Thu, Oct 25, 2007 at 02:44:56PM +0200, Attila Nagy wrote:
> On 10/24/07 17:57, Pawel Jakub Dawidek wrote:
> >ZFS caches components names in /boot/zfs/zpool.cache. You may remove
> >this file and import the pool again.
> >  
> Pawel, thanks for the quick answer.
> 
> On the same machine I do an rsync from another machine. The first run 
> went OK, but the next (incremental, both sides contain nearly the same 
> amount of stuff) ones result in a panic:
> rsync -va --progress --delete root at 192.168.1.1:/home/cyrus/spool/ 
> /people/mail/var/spool/imap/
> receiving file list ...
> 586728 files to consider
> 169500 files... (crash)
> 
> There are bigger and smaller files in many directories. There are 
> mid-sized directories with several thousands of small files (40-50000), 
> because this is a cyrus (maildir-like) mailspool.
> 
> The target machine (which crashes) is:
> uname -a
> FreeBSD artax 7.0-BETA1 FreeBSD 7.0-BETA1 #1: Thu Oct 25 09:10:32 CEST 
> 2007     root at artax:/usr/obj/usr/src/sys/ARTAX  i386
> 
> The machine has only 1G RAM, the ZFS and other kmem related settings are 
> left on their default values.
> Unread portion of the kernel message buffer:
> panic: kmem_malloc(131072): kmem_map too small: 335319040 total allocated
> cpuid = 0
> Uptime: 18m22s
> Physical memory: 1015 MB
> Dumping 372 MB: 357 341 325 309 293 277 261 245 229 213 197 181 165 149 
> 133 117 101 85 69 53 37 21 5
> 
> #0  doadump () at pcpu.h:195
> 195             __asm __volatile("movl %%fs:0,%0" : "=r" (td));
> 
> I've tried to lower vfs.zfs.arc_max first to 32, then 16 MB, but the 
> panics still occur.

Have you tried the patch I posted some weeks ago?

	http://people.freebsd.org/~pjd/patches/vm_kern.c.2.patch

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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