Panic in ZFS layer on 8.1-STABLE

[Jeremie Le Hen]

Hi,

[ Please Cc: me when replying, as I'm not subscribed to -stable at . ]

My filer at home runs FreeBSD.  A single data RAID-1 zpool with 10~15
datasets, two of them using compression.  Over the night, I got the
following panic:

Tracing pid 0 tid 100111 td 0x86393a00
kdb_enter(809faa5b,809faa5b,80a12e84,cb114aec,0,...) at kdb_enter+0x3a
panic(80a12e84,1c000,2e3e8000,80a12e7e,7d0,...) at panic+0x131
kmem_malloc(8169008c,1c000,2,cb114b6c,80909a99,...) at kmem_malloc+0x285
page_alloc(0,1c000,cb114b5f,2,2f0c800,...) at page_alloc+0x27
uma_large_malloc(1c000,2,0,8609b3f0,30,...) at uma_large_malloc+0x4a
malloc(1c000,860b2120,2,cb114bb0,8601d36d,...) at malloc+0x7c
zfs_kmem_alloc(1c000,2,cb114bf0,8601f77b,1c000,...) at
zfs_kmem_alloc+0x20
zio_buf_alloc(1c000,cb114c30,86008817,92c33bd0,cb114bf0,...) at
zio_buf_alloc+0x44
zio_compress_data(3,b4264000,20000,0,cb114c58,...) at
zio_compress_data+0x8b
zio_write_bp_init(92c339c0,92bba254,cb114c80,8071a322,cb114ca0,...) at
zio_write_bp_init+0xff
zio_execute(92c339c0,8638e0c0,cb114cd0,8071c5f4,92c33c14,...) at
zio_execute+0xab
taskq_run_safe(92c33c14,1,0,80a8429c,0,...) at taskq_run_safe+0x13
taskqueue_run(8638e0c0,8638e0d8,0,809ef596,0,...) at taskqueue_run+0x15d
taskqueue_thread_loop(8638c3d0,cb114d38,8071c72a,0,cb114d20,...) at
taskqueue_thread_loop+0xbd
fork_exit(8071c72a,8638c3d0,cb114d38) at fork_exit+0x91
fork_trampoline() at fork_trampoline+0x8       

I couldn't get a crash dump, sorry.  However, I'm still using the same
kernel so I can probably use addr2line(1) if you need it.

Regards,
-- 
Jeremie Le Hen

Humans are born free and equal.  But some are more equal than others.
					    Coluche