Date: Sat, 28 Dec 2002 00:55:21 +0100 From: "Pawel Worach" <pawel.worach@telia.com> To: <freebsd-current@freebsd.org> Subject: kldunload related panic Message-ID: <000001c2ae03$6b2e0c30$2a45fea9@corona>
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During buildworld I loaded and unloaded the if_tun
module and here is the result:
Kernel is basically GENERIC with some drivers removed,
uname: FreeBSD 5.0-RC #0: Fri Dec 27 12:40:30 GMT 2002
panic: allocbuf: buffer not busy
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x4
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc02e9f73
stack pointer = 0x10:0xc63e0c70
frame pointer = 0x10:0xc63e0c70
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 11886 (kldunload)
trap number = 12
panic: page fault
syncing disks, buffers remaining... panic: allocbuf: buffer not busy
Uptime: 28m30s
Dumping 63 MB
ata0: resetting devices ..
done
16 32 48
---
#0 0xc02e31cb in doadump ()
#1 0xc02e3651 in boot ()
#2 0xc02e3863 in panic ()
#3 0xc032454d in allocbuf ()
#4 0xc0324204 in getblk ()
#5 0xc03217fa in breadn ()
#6 0xc03217ac in bread ()
#7 0xc03edcc3 in ffs_update ()
#8 0xc0401d7f in ffs_fsync ()
#9 0xc0400f4e in ffs_sync ()
#10 0xc033483b in sync ()
#11 0xc02e32c2 in boot ()
#12 0xc02e3863 in panic ()
#13 0xc0458b8e in trap_fatal ()
#14 0xc04588a2 in trap_pfault ()
#15 0xc045846d in trap ()
#16 0xc0449598 in calltrap ()
#17 0xc02d4a4a in linker_file_unregister_sysctls ()
#18 0xc02d511e in linker_file_unload ()
#19 0xc02d57d6 in kldunload ()
#20 0xc0458e4e in syscall ()
#21 0xc04495ed in Xint0x80_syscall ()
Any ideas?
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