Date: Thu, 21 Jul 2005 01:00:48 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Eirik ?verby <ltning@anduin.net>, stable@FreeBSD.org, Robert Watson <rwatson@FreeBSD.org> Subject: Re: Serious issue with serial console in 5.4 Message-ID: <20050721050048.GU22430@xor.obsecurity.org>
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[-- Attachment #1 --] On Mon, Jul 18, 2005 at 11:58:54AM +0200, Eirik ?verby wrote: > Hi, > > I reported this before, but I am very surprised that it is still the > case: > > (This is from the last time it happened; this time the box rebooted > and cleared the serial console before I had time to cut/paste it. > >Fatal trap 12: page fault while in kernel mode > >cpuid = 1; apic id = 00 > >fault virtual address = 0x1c > >fault code = supervisor write, page not present > >instruction pointer = 0x8:0xc0620b5f > >stack pointer = 0x10:0xdadbd988 > >frame pointer = 0x10:0xdadbd994 > >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 = 51999 (getty) > >trap number = 12 > >panic: page fault > >cpuid = 1 > >boot() called on cpu#0 > >Uptime: 66d11h24m50s > > The above panic will show up occasionally when logging out from a > serial console (i.e. ctrl-D, logout, exit, whatever). This is > EXTREMELY BAD, as it will crash an otherwise perfectly healthy box at > random - and renders the serial console useless. > > Robert Watson confirmed this to be an issue on the 10th of April. > > Anyone?? You might have to wait until 6.0-R since fixing it seems to require infrastructure changes that cannot easily be backported to 5.x. Kris [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFC3yv/Wry0BWjoQKURAmmXAKDsFaJXxI1QtxIcHCTJWWt8UsYOVQCfRA70 s6DLhNMSmnbbehBt6tRf5zo= =Kgb+ -----END PGP SIGNATURE-----
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