Re: kern/51215: nfs client kernel crash

[Joerg Sonnenberger <joerg%bec.de@localhost>]

The following reply was made to PR kern/51215; it has been noted by GNATS.

From: Joerg Sonnenberger <joerg%bec.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/51215: nfs client kernel crash
Date: Sat, 4 Jun 2016 13:34:20 +0200

 On Sat, Jun 04, 2016 at 09:50:00AM +0000, 6bone%6bone.informatik.uni-leipzig.de@localhost wrote:
 > >Description:
 > in rare cases, under high nfs load the kernel crashes
 > 
 > 0xffffffff8068630f in cpu_reboot (howto=howto@entry=260,
 >     bootstr=bootstr@entry=0x0) at
 > /usr/src/sys/arch/amd64/amd64/machdep.c:671
 > 671                     dumpsys();
 > (gdb) bt
 > #0  0xffffffff8068630f in cpu_reboot (howto=howto@entry=260,
 >     bootstr=bootstr@entry=0x0) at
 > /usr/src/sys/arch/amd64/amd64/machdep.c:671
 > #1  0xffffffff808cbce4 in vpanic (fmt=fmt@entry=0xffffffff80dd3d3d "trap",
 >     ap=ap@entry=0xfffffe8157920d18) at /usr/src/sys/kern/subr_prf.c:340
 > #2  0xffffffff808cbd9f in panic (fmt=fmt@entry=0xffffffff80dd3d3d "trap")
 >     at /usr/src/sys/kern/subr_prf.c:256
 > #3  0xffffffff8091b001 in trap (frame=0xfffffe8157920e20)
 >     at /usr/src/sys/arch/amd64/amd64/trap.c:298
 > #4  0xffffffff80100fde in alltraps ()
 > #5  0xffffffff8070605c in nfs_timer (arg=<optimized out>)
 >     at /usr/src/sys/nfs/nfs_socket.c:770
 > #6  0xffffffff80622022 in callout_softclock (v=<optimized out>)
 >     at /usr/src/sys/kern/kern_timeout.c:736
 > #7  0xffffffff80616bb8 in softint_execute (l=<optimized out>, s=2,
 >     si=0xffff80035866a0c0) at /usr/src/sys/kern/kern_softint.c:589
 > #8  softint_dispatch (pinned=<optimized out>, s=2)
 >     at /usr/src/sys/kern/kern_softint.c:871
 > #9  0xffffffff8011412f in Xsoftintr ()
 
 For reference purposes, please include "indent src/sys/nfs/*.c", so that
 the line numbers and specific revisions can be matched.
 
 Joerg