Date: Mon, 9 May 2005 07:00:07 +0200 From: Peter Holm <peter@holm.cc> To: current@freebsd.org Subject: page fault in ata-queue.c:93 Message-ID: <20050509050007.GA95716@peter.osted.lan>
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With GENERIC HEAD from May 5 04:56 UTC I got:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0xc172e035
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc04d048d
stack pointer = 0x28:0xcc9cbc68
frame pointer = 0x28:0xcc9cbc70
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 = 4 (g_down)
[thread pid 4 tid 100040 ]
Stopped at ata_queue_request+0x1b1: testb $0x4,0x35(%ebx)
db> hr~~~GDB: no debug ports present
(kgdb) l *0xc04d048d
0xc04d048d is in ata_queue_request (../../../dev/ata/ata-queue.c:93).
88 ATA_DEBUG_RQ(request, "queued");
89 ata_start(ch->dev);
90 }
91
92 /* if this is a requeued request callback/sleep we're done */
93 if (request->flags & ATA_R_REQUEUE)
94 return;
95
96 /* if this is not a callback wait until request is completed */
97 if (!request->callback) {
The system froze during typing "where".
--
Peter Holm
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