LWKT_WAIT_IPIQ panic

[Steve O'Hara-Smith]

	Hi,

	With an update to  v2.9.1.845.gc7506-DEVELOPMENT these panics have
become quite frequent (several times a day).

	I finally got a dump out of one of the crashes - it's packed up at

	http://www.sohara.org/crash.tgz

	For the time being I'm running the box with a UP kernel in the hope
that it will be stable.

On Thu, 3 Mar 2011 07:51:23 +0000
"Steve O'Hara-Smith" <steve at sohara.org> wrote:

> On Wed, 23 Feb 2011 18:07:29 +0000
> "Steve O'Hara-Smith" <steve at sohara.org> wrote:
> 
> > 	Hi,
> > 
> > 	I just got an LWKT_WAIT_IPIQ panic on a box running head from
> > this morning (UK time). hand copied trace
> 
> 	I'm getting these at random intervals usually at least once a day.
> I'm also seeing ssh stalls on ipv6 connections to the box (but not on
> ipv4) and a boot time message:
> 
> clist_alloc_cblocks: M_NOWAIT kmalloc failed, trying M_WAITOK
> 
> 	I've no idea whether or not these things are related but they all
> started about the same time:
> 
> > LWKT_WAIT_IPIQ WARNING! 0 wait 0 (-1)
> > panic: LWKT)WAIT_IPIQ
> > cpuid = 0
> > Trace beginning at frame 0xd6696cb0
> > panic (ffffffff) at panic + 0x164
> > panic (c040bf26, deadc0de, c67096a0, ff000000)
> > lwkt_wait_ipiq (deadc0de, 1, deadc0de, c01e5c34, c67096a0) at
> > lwkt_wait_ipiq + 0x93
> > callout_stop (c670960a) at callout_stop + 0xe3
> > callout_reset (...)
> > filt_timer_expire (...)
> > softclock_handler (...)
> > lwkt_exit()
> > 
> > 	The box is running a vinum RAID0 on a couple of terabyte drives
> > with a Hammer filesystem on the mirror, an SSD for the OS and swap (16GB
> > with swapcache enabled) and three vkernel environments running various
> > services (incoming mail + dovecot, IPV6 tunnel termination with pf
> > firewall, thttpd web server) as well as NFS exports and mediatomb
> > running on the host. It's an Asus M4A78L-M motherboard with an AMD
> > Phenom II X4 955 and 4GB of memory
> 


-- 
Steve O'Hara-Smith                          |   Directable Mirror Arrays
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