Re: kern/53254: kernel panic in scsibus_discover_thread

[mlelstv%serpens.de@localhost (Michael van Elst)]

The following reply was made to PR kern/53254; it has been noted by GNATS.

From: mlelstv%serpens.de@localhost (Michael van Elst)
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/53254: kernel panic in scsibus_discover_thread
Date: Thu, 3 May 2018 11:44:29 -0000 (UTC)

 coypu%sdf.org@localhost writes:
 
 >My old phone, when attached via usb, will repeatedly disconnect / re-appear, as if it's trying to stress test systems :-)
 
 >[ 11416.1442881] uvm_fault(0xffffffff815b0180, 0x0, 1) -> e
 >[ 11416.1442881] fatal page fault in supervisor mode
 >[ 11416.1442881] trap type 6 code 0 rip 0xffffffff80266ddb cs 0x8 rflags 0x10246 cr2 0xa9 ilevel 0 rsp 0xffff800067553ea0
 >[ 11416.1442881] curlwp 0xffffe4012cd02a00 pid 0.165 lowest kstack 0xffff8000675502c0
 >[ 11416.1442881] panic: trap
 >[ 11416.1442881] cpu0: Begin traceback...
 >[ 11416.1442881] vpanic() at netbsd:vpanic+0x16f
 >[ 11416.1442881] snprintf() at netbsd:snprintf
 >[ 11416.1542911] startlwp() at netbsd:startlwp
 >[ 11416.1542911] alltraps() at netbsd:alltraps+0xc8
 >[ 11416.1542911] scsibus_discover_thread() at netbsd:scsibus_discover_thread+0x7f
 >[ 11416.1542911] cpu0: End traceback...
 
 >[ 11416.1542911] dumping to dev 0,1 (offset=1896, size=1013425):
 >[ 11416.1542911] dump
 
 Can you identify the faulting instruction and source line ?
 
 A fault address of 0xa9 looks strange.
 
 -- 
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                                 Michael van Elst
 Internet: mlelstv%serpens.de@localhost
                                 "A potential Snark may lurk in every tree."