iwn 4965 crash

[Bernhard Schmidt]

On Sat, May 12, 2012 at 8:23 AM, Bryan Venteicher
<bryanv at daemoninthecloset.org> wrote:
> I've experienced the crash below pretty frequently from a one day old
> 9-STABLE during BSDCan, partiality in the 15th floor hacker lounge.
>
> #1  0xffffffff80893085 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:442
> #2  0xffffffff80893531 in panic (fmt=Variable "fmt" is not available.
> ) at /usr/src/sys/kern/kern_shutdown.c:607
> #3  0xffffffff80b7edc0 in trap_fatal (frame=0xc, eva=Variable "eva" is not available.
> ) at /usr/src/sys/amd64/amd64/trap.c:843
> #4  0xffffffff80b7f13f in trap_pfault (frame=0xffffff8114a3e8d0, usermode=0) at /usr/src/sys/amd64/amd64/trap.c:759
> #5  0xffffffff80b7f61e in trap (frame=0xffffff8114a3e8d0) at /usr/src/sys/amd64/amd64/trap.c:454
> #6  0xffffffff80b6a0af in calltrap () at /usr/src/sys/amd64/amd64/exception.S:228
> #7  0xffffffff8055f1bc in iwn_notif_intr (sc=0xffffff800077b000) at /usr/src/sys/dev/iwn/if_iwn.c:2447
> #8  0xffffffff80561438 in iwn_intr (arg=Variable "arg" is not available.
> ) at /usr/src/sys/dev/iwn/if_iwn.c:3197
> #9  0xffffffff80868604 in intr_event_execute_handlers (p=Variable "p" is not available.
> ) at /usr/src/sys/kern/kern_intr.c:1260
> #10 0xffffffff80869d84 in ithread_loop (arg=0xfffffe00043d0ac0) at /usr/src/sys/kern/kern_intr.c:1273
> #11 0xffffffff808657ef in fork_exit (callout=0xffffffff80869ce0 <ithread_loop>, arg=0xfffffe00043d0ac0,
>    frame=0xffffff8114a3ec40) at /usr/src/sys/kern/kern_fork.c:992
> #12 0xffffffff80b6a5de in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:602
>
> if_iwn.c:
>   2444         bus_dmamap_sync(sc->rxq.data_dmat, data->map, BUS_DMASYNC_POSTREAD);
>   2445
>   2446         txq = &sc->txq[le16toh(ba->qid)];
>   2447         tap = sc->qid2tap[le16toh(ba->qid)];
>   2448         tid = WME_AC_TO_TID(tap->txa_ac);
>   2449         ni = tap->txa_ni;
>   2450         wn = (void *)ni;
>   2451
>   2452         if (wn->agg[tid].bitmap == 0)
>   2453                 return;
>
> FreeBSD curses.daemoninthecloset.org 9.0-STABLE FreeBSD 9.0-STABLE #0: Thu May 10 21:55:32 EDT 2012     bryanv at curses.daemoninthecloset.org:/usr/obj/usr/src/sys/GENERIC  amd64
>
> vmcore available.

Please try attached patch

-- 
Bernhard
-------------- next part --------------
A non-text attachment was scrubbed...
Name: iwn_delba.diff
Type: application/octet-stream
Size: 3745 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-wireless/attachments/20120512/beb29d7b/iwn_delba.obj