Subject: kern/7946: neighbor discovery tries to block at interrupt level.
To: None <gnats-bugs@gnats.netbsd.org>
From: Bill Sommerfeld <wes@orchard.arlington.ma.us>
List: netbsd-bugs
Date: 07/09/1999 05:36:18
>Number: 7946
>Category: kern
>Synopsis: neighbor discovery tries to block at interrupt level.
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: kern-bug-people (Kernel Bug People)
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Jul 9 05:35:01 1999
>Last-Modified:
>Originator: Bill Sommerfeld
>Organization:
none
>Release: 19990708
>Environment:
System: NetBSD thunk 1.4D NetBSD 1.4D (VAIO.v6) #5: Thu Jul 8 07:37:38 CEST 1999 root@thunk:/usr/wes/sys-current/arch/i386/compile/VAIO.v6 i386
>Description:
upon coming out of suspend, ipv6-enabled laptop crashed with
following panic/traceback:
(gdb) target kcore /var/crash/netbsd.1.core
target kcore /var/crash/netbsd.1.core
panic: pool_get: must have NOWAIT
#0 0xf014f866 in pool_destroy ()
(gdb) where
#0 0xf014f866 in pool_destroy ()
#1 0xf01d363b in cpu_reboot ()
#2 0xf0151240 in log ()
#3 0xf014fa17 in _pool_get ()
#4 0xf015cacb in m_get ()
#5 0xf01881b9 in rtinit ()
#6 0xf0131c1d in in6_ifdel ()
#7 0xf012d81a in nd6_timer ()
#8 0xf013e91e in softclock ()
#9 0xf013e89e in hardclock ()
#10 0xf01ff62f in clockintr ()
>How-To-Repeat:
uncertain.
if m_get had the same sort of "not at interrupt context" test
which pool_get has, cases like this would be easier to check..
>Fix:
uncertain.
>Audit-Trail:
>Unformatted: