Sorry about that; looks like you've hit this:
6546683 marvell88sx driver misses wakeup for mv_empty_cv
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6546683
Fixed in snv_64.
-r
Thomas Garner writes:
> > We have seen this behavior, but it appears to be entirely related to the
> > hardware having the "Intel IPMI" stuff swallow up the NFS traffic on port
> > 623 directly by the network hardware and never getting.
> >
> > http://blogs.sun.com/shepler/entry/port_623_or_the_mount
>
> Unfortunately, this nfs hangs across 3 separate machines, none of
> which should have this IPMI issue. It did spur me on to dig a little
> deeper, though, so thanks for the encouragement that all may not be
> well.
>
> Can anyone debug this? Remember that this is Nexenta Alpha 7, so it
> should be b61. nfsd is totally hung (rpc timeouts) and zfs would be
> having problems taking snapshots, if I hadn't disabled the hourly
> snapshots.
>
> Thanks!
> Thomas
>
> [EMAIL PROTECTED] ~]$ rpcinfo -t filer0 nfs
> rpcinfo: RPC: Timed out
> program 100003 version 0 is not available
>
> echo "::pgrep nfsd | ::walk thread | ::findstack -v" | mdb -k
>
> stack pointer for thread 821cda00: 822d6e28
> 822d6e5c swtch+0x17d()
> 822d6e8c cv_wait_sig_swap_core+0x13f(8b8a9232, 8b8a9200, 0)
> 822d6ea4 cv_wait_sig_swap+0x13(8b8a9232, 8b8a9200)
> 822d6ee0 cv_waituntil_sig+0x100(8b8a9232, 8b8a9200, 0)
> 822d6f44 poll_common+0x3e1(8069480, a, 0, 0)
> 822d6f84 pollsys+0x7c()
> 822d6fac sys_sysenter+0x102()
> stack pointer for thread 821d2e00: 8c279d98
> 8c279dcc swtch+0x17d()
> 8c279df4 cv_wait_sig+0x123(8988796e, 89887970)
> 8c279e2c svc_wait+0xaa(1)
> 8c279f84 nfssys+0x423()
> 8c279fac sys_sysenter+0x102()
> stack pointer for thread a9f88800: 8c92e218
> 8c92e244 swtch+0x17d()
> 8c92e254 cv_wait+0x4e(8a4169ea, 8a4169e0)
> 8c92e278 mv_wait_for_dma+0x32()
> 8c92e2a4 mv_start+0x278(88252c78, 89833498)
> 8c92e2d4 sata_hba_start+0x79(8987d23c, 8c92e304)
> 8c92e308 sata_txlt_synchronize_cache+0xb7(8987d23c)
> 8c92e334 sata_scsi_start+0x1b7(8987d1e4, 8987d1e0)
> 8c92e368 scsi_transport+0x52(8987d1e0)
> 8c92e3a4 sd_start_cmds+0x28a(8a2710c0, 0)
> 8c92e3c0 sd_core_iostart+0x158(18, 8a2710c0, 8da3be70)
> 8c92e3f8 sd_uscsi_strategy+0xe8(8da3be70)
> 8c92e414 sd_send_scsi_SYNCHRONIZE_CACHE+0xd4(8a2710c0, 8c50074c)
> 8c92e4b0 sdioctl+0x48e(1ac0080, 422, 8c50074c, 80100000, 883cee68, 0)
> 8c92e4dc cdev_ioctl+0x2e(1ac0080, 422, 8c50074c, 80100000, 883cee68, 0)
> 8c92e504 ldi_ioctl+0xa4(8a671700, 422, 8c50074c, 80100000, 883cee68, 0)
> 8c92e544 vdev_disk_io_start+0x187(8c500580)
> 8c92e554 vdev_io_start+0x18(8c500580)
> 8c92e580 zio_vdev_io_start+0x142(8c500580)
> 8c92e59c zio_next_stage+0xaa(8c500580)
> 8c92e5b0 zio_ready+0x136(8c500580)
> 8c92e5cc zio_next_stage+0xaa(8c500580)
> 8c92e5ec zio_wait_for_children+0x46(8c500580, 1, 8c50076c)
> 8c92e600 zio_wait_children_ready+0x18(8c500580)
> 8c92e614 zio_next_stage_async+0xac(8c500580)
> 8c92e624 zio_nowait+0xe(8c500580)
> 8c92e660 zio_ioctl+0x94(9c6f8300, 89557c80, 89556400, 422, 0, 0)
> 8c92e694 zil_flush_vdev+0x54(89557c80, 0, 0, 8c92e6e0, 9c6f8500)
> 8c92e6e4 zil_flush_vdevs+0x6b(8bbe46c0)
> 8c92e734 zil_commit_writer+0x35f(8bbe46c0, 3497c, 0, 4af5, 0)
> 8c92e774 zil_commit+0x96(8bbe46c0, ffffffff, ffffffff, 4af5, 0)
> 8c92e7e8 zfs_putpage+0x1e4(8c8ab480, 0, 0, 0, 0, 8c6c75c0)
> 8c92e824 vhead_putpage+0x95(8c8ab480, 0, 0, 0, 0, 8c6c75c0)
> 8c92e86c fop_putpage+0x27(8c8ab480, 0, 0, 0, 0, 8c6c75c0)
> 8c92e91c rfs4_op_commit+0x153(82141dd4, b28c3100, 8c92ed8c, 8c92e948)
> 8c92ea48 rfs4_compound+0x1ce(8c92ead0, 8c92ea7c, 0, 8c92ed8c, 0)
> 8c92eaac rfs4_dispatch+0x65(8bf9b248, 8c92ed8c, b28c5a40, 8c92ead0)
> 8c92ed10 common_dispatch+0x6b0(8c92ed8c, b28c5a40, 2, 4, 8bf9c01c,
> 8bf9b1f0)
> 8c92ed34 rfs_dispatch+0x1f(8c92ed8c, b28c5a40)
> 8c92edc4 svc_getreq+0x158(b28c5a40, 842952a0)
> 8c92ee0c svc_run+0x146(898878e8)
> 8c92ee2c svc_do_run+0x6e(1)
> 8c92ef84 nfssys+0x3fb()
> 8c92efac sys_sysenter+0x102()
> <snipping out a bunch of other threads>
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