Date: Mon, 6 Nov 2000 18:46:15 -0800 (PST) From: Matt Dillon <dillon@earth.backplane.com> To: Kirk McKusick <mckusick@mckusick.com> Cc: arch@FreeBSD.ORG Subject: softdep panic due to blocked malloc (with traceback) Message-ID: <200011070246.eA72kF271154@earth.backplane.com>
next in thread | raw e-mail | index | archive | help
This occured during low-memory deadlock testing:
-Matt
(pageout daemon)
A blocked malloc in the pageout daemon with a softdep lock
held:
#2 0xc0238f93 in vm_wait () at ../../vm/vm_page.c:891
#3 0xc0232d58 in kmem_malloc (map=0xc02db6a0, size=16384, flags=0)
at ../../vm/vm_kern.c:361
#4 0xc015bb47 in malloc (size=16384, type=0xc02c0c20, flags=0)
at ../../kern/kern_malloc.c:188
#5 0xc0223321 in softdep_disk_io_initiation (bp=0xcf379220)
at ../../ufs/ffs/ffs_softdep.c:2807
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ here
#6 0xc01964c3 in spec_strategy (ap=0xdca8fbdc)
at ../../miscfs/specfs/spec_vnops.c:412
#7 0xc0195fe1 in spec_vnoperate (ap=0xdca8fbdc)
at ../../miscfs/specfs/spec_vnops.c:117
#8 0xc022f31d in ufs_vnoperatespec (ap=0xdca8fbdc)
at ../../ufs/ufs/ufs_vnops.c:2303
#9 0xc022ed55 in ufs_strategy (ap=0xdca8fc20) at vnode_if.h:923
#10 0xc022f2ed in ufs_vnoperate (ap=0xdca8fc20)
at ../../ufs/ufs/ufs_vnops.c:2285
#11 0xc018369f in bwrite (bp=0xcf379220) at vnode_if.h:923
#12 0xc021f3e3 in ffs_balloc (ap=0xdca8fd40) at ../../ufs/ffs/ffs_balloc.c:316
#13 0xc0228119 in ffs_write (ap=0xdca8fd90) at vnode_if.h:1035
#14 0xc023d3fb in vnode_pager_generic_putpages (vp=0xe191fd80, m=0xdca8fea0,
Caused a panic to occur here in the update daemon:
#10 0xc0220429 in acquire_lock (lk=0xc02c0f5c)
at ../../ufs/ffs/ffs_softdep.c:262
#11 0xc02207a6 in softdep_process_worklist (matchmnt=0x0)
at ../../ufs/ffs/ffs_softdep.c:546
#12 0xc018b26b in sched_sync () at ../../kern/vfs_subr.c:1034
#13 0xc02542a0 in fork_trampoline ()
cannot read proc at 0
(kgdb) frame 10
#10 0xc0220429 in acquire_lock (lk=0xc02c0f5c)
at ../../ufs/ffs/ffs_softdep.c:262
262 panic("softdep_lock: lock held by %d", lk->lkt_held);
(kgdb)
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-arch" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200011070246.eA72kF271154>