Bug #2004

LWKT_WAIT_IPIQ panic

Added by steve about 3 years ago. Updated about 3 years ago.

Status:NewStart date:
Priority:NormalDue date:
Assignee:-% Done:

0%

Category:-
Target version:-

Description

Hi,

I just got an LWKT_WAIT_IPIQ panic on a box running head from this
morning (UK time). hand copied trace

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

History

#1 Updated by steve about 3 years ago

On Wed, 23 Feb 2011 18:07:29 +0000
"Steve O'Hara-Smith" <> 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

#2 Updated by steve about 3 years ago

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" <> wrote:

> On Wed, 23 Feb 2011 18:07:29 +0000
> "Steve O'Hara-Smith" <> 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
>

#3 Updated by steve about 3 years ago

Hi,

With a UP kernel I'm getting this message at about the rate the SMP
kernel was panicking.

thr_umtx_wait: FAULT VALUE CHANGE 7366 -> 7367 oncond 0x284e0074

On Tue, 8 Mar 2011 10:22:35 +0000
"Steve O'Hara-Smith" <> wrote:

> 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" <> wrote:
>
> > On Wed, 23 Feb 2011 18:07:29 +0000
> > "Steve O'Hara-Smith" <> 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
> >
>
>

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