kern/175950: Possible deadlock in zfs after long uptime

Andriy Gapon avg at FreeBSD.org
Fri Feb 8 11:40:03 UTC 2013


The following reply was made to PR kern/175950; it has been noted by GNATS.

From: Andriy Gapon <avg at FreeBSD.org>
To: bug-followup at FreeBSD.org, pascal.guitierrez at gmail.com
Cc:  
Subject: Re: kern/175950: Possible deadlock in zfs after long uptime
Date: Fri, 08 Feb 2013 13:30:43 +0200

 on 08/02/2013 08:26 Andriy Gapon said the following:
 >  1963 100308 nfsd             nfsd: service    mi_switch+0x176 sleepq_wait+0x42
 > _sleep+0x317 arc_lowmem+0x77 kmem_malloc+0xc1 uma_large_malloc+0x4a malloc+0xd7
 > arc_get_data_buf+0xb5 arc_read_nolock+0x1ec arc_read+0x93 dbuf_read+0x452
 > dmu_tx_check_ioerr+0x9a dmu_tx_count_write+0x29c dmu_tx_hold_write+0x4a
 > zfs_freebsd_write+0x372 VOP_WRITE_APV+0xb2 nfsrv_write+0x969 nfssvc_program+0x1a6
 
 Could you please provide another bit of information?
 Run kgdb and do 'list *arc_get_data_buf+0xb5'.
 Thank you.
 -- 
 Andriy Gapon


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