Hi,
I just found out that ZFS triggers a kernel-panic while switching a mounted
volume
into read-only mode:
The system is attached to a Symmetrix, all zfs-io goes through Powerpath:
I ran some io-intensive stuff on /tank/foo and switched the device into
read-only mode at the same time (symrdf -g bar failover -establish).
ZFS went 'bam' and triggered a Panic:
WARNING: /[EMAIL PROTECTED],700000/[EMAIL PROTECTED]/SUNW,[EMAIL
PROTECTED]/[EMAIL PROTECTED],0/[EMAIL PROTECTED],e5 (ssd0):
Error for Command: write(10) Error Level: Fatal
Requested Block: 19062 Error Block: 19062
Vendor: EMC Serial Number: 900D5008U
Sense Key:
panic[cpu0]/thread=2a10103bcc0: Write Protected
ZFS: I/O failure (write on <unknown> off 0: zio 6001f3f2340 [L0 DMU dnode]
4000L/a00P DVA[0]=<0:54e000:a00> DVA[1]=<0:d000ab800:a00> fletcher4 lzjb BE
contiguous birth=597 fill=31
cksum=97d1c4f896:dd5b900a7ec8:b89066e037beda:7021cc17c66f4713): error 6
000002a10103b880 zfs:zio_done+29c (0, 10, 6000e361400, 600202bfb80,
6001f3f2340, 0)
%l0-3: 0000060003233b40 00000600109c1740 000000007085a218 0000000000000006
%l4-7: 0000000000000002 0000000000000255 0000000000000006 00000000018bf400
000002a10103b940 zfs:zio_vdev_io_assess+178 (6001f3f2340, 8000, 10, 0, 0, 10)
%l0-3: 0000000000000002 0000000000000002 0000000000000000 0000000000000006
%l4-7: 0000000000000010 0000000000000001 0000000000000000 0000000000000000
000002a10103ba00 genunix:taskq_thread+1a4 (60003929228, 600039291d0, 50001,
507428728c, 2a10103baca, 2a10103bac8)
%l0-3: 0000000000010000 00000600039291f8 0000060003929200 0000060003929202
%l4-7: 0000060003927a50 0000000000000002 0000000000000000 00000600039291f0
syncing file systems... done
Is there some magic zfs-option such as VxFS's 'ioerror=disable' ?
Regards,
Adrian
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