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Date:      Mon, 13 Oct 1997 08:41:58 +0200
From:      j@uriah.heep.sax.de (J Wunsch)
To:        freebsd-current@FreeBSD.org (FreeBSD-current users)
Subject:   lockmgr panic
Message-ID:  <19971013084158.HG40991@uriah.heep.sax.de>

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I thought we got rid of this kind of panics finally?  Apparently not:

uriah # dmesg -M vmcore.30 -N kernel.30 |tail
bppp0: phase authenticate
bppp0: phase network
bppp0: phase terminate
bppp0: phase dead
panic: lockmgr: locking against myself

syncing disks... panic: lockmgr: locking against myself

dumping to dev 409, offset 134464
dump 32 31 30 29 28 27 26 25 24 23 22 21 20 19 ...

Coredump still available.  Can i do something with it to help
analyzing the problem?  The crash happened towards the end of a `make
release', apparently while writing to a vn device:

panic: lockmgr: locking against myself
#0  0xf01215c7 in boot ()
(kgdb) bt
#0  0xf01215c7 in boot ()
#1  0xf01218a3 in panic ()
#2  0xf011ce40 in lockmgr ()
#3  0xf01c0733 in ufs_lock ()
#4  0xf0146847 in vn_lock ()
#5  0xf010b822 in vnstrategy ()
#6  0xf014f49a in spec_strategy ()
#7  0xf013a8b2 in bwrite ()
#8  0xf013a8fe in vn_bwrite ()
#9  0xf013b2a3 in vfs_bio_awrite ()
#10 0xf01baade in ffs_fsync ()
#11 0xf01b954f in ffs_sync ()
#12 0xf0142503 in sync ()
#13 0xf0121491 in boot ()
#14 0xf01218a3 in panic ()
#15 0xf011ce40 in lockmgr ()
#16 0xf01c0733 in ufs_lock ()
#17 0xf0146847 in vn_lock ()
#18 0xf010b822 in vnstrategy ()
#19 0xf014f49a in spec_strategy ()
#20 0xf013a8b2 in bwrite ()
#21 0xf013a8fe in vn_bwrite ()
#22 0xf013b2a3 in vfs_bio_awrite ()
#23 0xf013b548 in getnewbuf ()
#24 0xf013bbac in getblk ()
#25 0xf013a5f1 in bread ()
#26 0xf01b6e75 in ffs_balloc ()
#27 0xf01ba229 in ffs_write ()
#28 0xf010b888 in vnstrategy ()
#29 0xf014f49a in spec_strategy ()
#30 0xf01c0846 in ufs_strategy ()
#31 0xf013a8b2 in bwrite ()
#32 0xf013a8fe in vn_bwrite ()
#33 0xf013aa7c in bawrite ()
#34 0xf01ba41c in ffs_write ()
#35 0xf0146439 in vn_write ()
#36 0xf0129a5d in write ()
#37 0xf01df533 in syscall ()

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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