panic in device_attach probing sata phy

From: Bjoern A. Zeeb <bzeeb-lists_at_lists.zabbadoz.net>
Date: Sun, 5 Jun 2005 18:04:34 +0000 (UTC)
Hi,

sources from June 1st...

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x50
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xffffffff803d23a2
stack pointer           = 0x10:0xffffffffb34f8ac0
frame pointer           = 0x10:0xffffffffb34f8b10
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 5 (thread taskq)
[thread pid 5 tid 100036 ]
Stopped at      device_attach+0x22:     cmpq    $0,0x50(%r13)
db> wh
Tracing pid 5 tid 100036 td 0xffffff00d8cc6000
device_attach() at device_attach+0x22
bus_generic_attach() at bus_generic_attach+0x18
ata_identify() at ata_identify+0xe6
ata_sata_phy_event() at ata_sata_phy_event+0xa2
taskqueue_run() at taskqueue_run+0x97
taskqueue_thread_loop() at taskqueue_thread_loop+0x2c
fork_exit() at fork_exit+0xbb
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffffffb34f8d00, rbp = 0 ---
db> sh alllocks
Process 5 (thread taskq) thread 0xffffff00d8cc6000 (100036)
exclusive sleep mutex Giant r = 0 (0xffffffff808606e0) locked _at_ /local/building/freebsd/HEAD-x4b/sys/dev/ata/ata-chipset.c:302


-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
Received on Sun Jun 05 2005 - 16:05:10 UTC

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