Re: kern/40946: panic in scsipi_execute_xs

[6bone%6bone.informatik.uni-leipzig.de@localhost]

The following reply was made to PR kern/40946; it has been noted by GNATS.

From: 6bone%6bone.informatik.uni-leipzig.de@localhost
To: gnats-bugs%NetBSD.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, 
netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/40946: panic in scsipi_execute_xs
Date: Wed, 4 Mar 2009 10:39:45 +0100 (CET)

 On Tue, 3 Mar 2009, Andrew Doran wrote:
 
 > This is the real crash. rip=0 indicates that the kernel has jumped through a
 > null function pointer somewhere. ddb needs enhancement to be able to trace
 > back through these.
 
 there is a new trace. the error occured at a time with high disk load. 
 Unfortunately it is not possible to report a trace
 
 fatal page fault in supervisor mode
 trap type 6 code 0 rip 0 cs 8 rflags 10202 cr2  0 cpl 6 rsp 
 ffff8000693f4ae0
 kernel: page fault trap, code=0
 Stopped in pid 0.2 (system) at  0:      invalid address
 db{0}> trace
 fatal page fault in supervisor mode
 trap type 6 code 0 rip ffffffff80520f1c cs 8 rflags 10246 cr2  0 cpl 8 rsp 
 ffff0
 kernel: page fault trap, code=0
 Faulted in DDB; continuing...
 db{0}> show register
 ds          0x6e69
 es          0x4ab8
 fs          0
 gs          0x7020
 rdi         0xffff80001f2b8170
 rsi         0xffff80001f279200
 rbp         0xffff8000693f4b18
 rbx         0xffff80001f2b8170
 rdx         0xad400
 rcx         0x2c0
 rax         0x81c00
 r8          0xa
 r9          0
 r10         0x1
 r11         0xffffffff805074c0  _bus_dmamap_sync
 r12         0x312
 r13         0xffff80006cea4000
 r14         0xffff80006ceb7000
 r15         0x313
 rip         0
 cs          0x8
 rflags      0x10202
 rsp         0xffff8000693f4ae0
 ss          0x10
 0:      invalid address
 db{0}>
 
 
 Regards
 Uwe