Subject: Re: crash in ntfs read?
To: Steven M. Bellovin <firstname.lastname@example.org>
From: Pavel Cahyna <email@example.com>
Date: 05/12/2005 07:59:07
> In message <firstname.lastname@example.org>, Pavel Cahyna writes
> >On Wed, 11 May 2005 11:14:25 -0400, Steven M. Bellovin wrote:
> >> machines. (Btw, I don't know what the panic is; gdb didn't display it,
> >> and I haven't had the chance to figure out yet why not.)
> >Did you try the dmesg command with the -M option to display the panic
> Ah, I should have thought of that:
> uvm_fault(0xcd006544, 0, 0, 2) -> 0xe
> fatal page fault in supervisor mode
> trap type 6 code 2 eip c02ea777 cs 8 eflags 10282 cr2 0 ilevel 0
> panic: trap
> Begin traceback...
And you have the ddb traceback without having to turn ddb on :-)
> trap() at netbsd:trap+0x153
> --- trap (number 6) ---
> ntfs_vgetex(c1eb2000,2738,80,0,2) at netbsd:ntfs_vgetex+0x18f
I guess this frame will be missed by gdb, because that's where the invalid
memory reference happens.