Date: Fri, 14 May 1999 07:39:29 -0500 From: "Matthew D. Fuller" <fullermd@futuresouth.com> To: Sheldon Hearn <sheldonh@uunet.co.za> Cc: Gianmarco Giovannelli <gmarco@scotty.masternet.it>, "'current@freebsd.org'" <current@FreeBSD.ORG> Subject: Re: Today's kernel crashes on starting X Message-ID: <19990514073929.A26478@futuresouth.com> In-Reply-To: <287.926641048@axl.noc.iafrica.com>; from Sheldon Hearn on Fri, May 14, 1999 at 02:17:28AM %2B0200 References: <4.1.19990514011159.01bc1590@194.184.65.4> <287.926641048@axl.noc.iafrica.com>
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On Fri, May 14, 1999 at 02:17:28AM +0200, a little birdie told me
that Sheldon Hearn remarked
>
>
> On Fri, 14 May 1999 01:13:36 +0200, Gianmarco Giovannelli wrote:
>
> > Here it continues to panic with screen, same errors of yesterday... I'll
> > try with X right now but I think it is the same story... :-)
> > Cvsupped and maked world this afternoon (CEST).
>
> Well guesss what? I'm seeing panics too, after suggesting that
> everything was cool and froody. :-)
>
> I don't have to start X, I get a panic as soon as I try to mount_mfs
> -- 100% reproducible. Someone else posted a backtrace, the one that
> incriminates checkalias(), I think?
I have one here with sources cvsup'd around 4am (CDT) today (as in, ~4
hours ago). Start X, start up screen in an xterm, and *bing*. However,
I strut my skill in manpiluating DDB while staring at a frozen X session
;>
Here's some quickies from kgdb:
Fatal trap 12: page fault while in kernel mode
mp_lock = 01000002; cpuid = 1; lapic.id = 0c000000
fault virtual address = 0x14
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0162490
stack pointer = 0x10:0xcb271d4c
frame pointer = 0x10:0xcb271d60
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 = 570 (screen-3.7.6)
interrupt mask = tty <- SMP: XXX
panic: from debugger
mp_lock = 01000003; cpuid = 1; lapic.id = 0c000000
boot() called on cpu#1
(kgdb) where
#0 0xc014f350 in boot ()
#1 0xc014f6ed in panic ()
#2 0xc012c899 in db_panic ()
#3 0xc012c839 in db_command ()
#4 0xc012c8fe in db_command_loop ()
#5 0xc012ea5f in db_trap ()
#6 0xc0213982 in kdb_trap ()
#7 0xc02265c2 in trap_fatal ()
#8 0xc0226259 in trap_pfault ()
#9 0xc0225ecf in trap ()
#10 0xc0162490 in ttyflush ()
#11 0xc0161bf1 in ttioctl ()
#12 0xc01650fe in ptyioctl ()
#13 0xc0181ad0 in spec_ioctl ()
#14 0xc01812f1 in spec_vnoperate ()
#15 0xc01f64c9 in ufs_vnoperatespec ()
#16 0xc017c045 in vn_ioctl ()
#17 0xc015b73f in ioctl ()
#18 0xc0226886 in syscall ()
#19 0xc02143a5 in Xint0x80_syscall ()
Unfortunately, it seems to be not giving me symbols. I'll try
recompiling it with makeoptions=-g and see if I can't pull up one more
good panic/dump real quick.
--
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
| Matthew Fuller MF4839 http://www.over-yonder.net/ |
* fullermd@futuresouth.com fullermd@over-yonder.net *
| UNIX Systems Administrator Specializing in FreeBSD |
* FutureSouth Communications ISPHelp ISP Consulting *
| "The only reason I'm burning my candle at both ends, |
* is because I haven't figured out how to light the *
| middle yet" |
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