Date: Sat, 24 Mar 2001 18:20:03 -0800 (PST) From: Nate Dannenberg <natedac@kscable.com> To: freebsd-ports@FreeBSD.org Subject: Re: ports/25958: Xfree86 s3 savage and vesa drivers can panic the kernel Message-ID: <200103250220.f2P2K3E25845@freefall.freebsd.org>
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The following reply was made to PR ports/25958; it has been noted by GNATS.
From: Nate Dannenberg <natedac@kscable.com>
To: <freebsd-gnats-submit@FreeBSD.org>
Cc:
Subject: Re: ports/25958: Xfree86 s3 savage and vesa drivers can panic the
kernel
Date: Sat, 24 Mar 2001 20:10:15 -0600 (CST)
I have come up with additional information regarding this problem, in that
I now know how to get FreeBSD to provide the crash information for me at
startup, via it's crashdump feature (see dumpon(8) and savecore(8)).
The problem was that XFree86 4.0.2 (and 4.0.3) will crash my system, an
IBM Aptiva (550 MHz Athlon, 96M Ram, Number Nine SR9 with S3 Savage4
chipset and 8M ram), if I use the "savage" or "vesa" drivers. Using the
"vga" driver provides a temporary solution, however it's not a suitable
replacement due to the very nature of plain VGA modes.
----- Text Import Begin -----
su-2.04# gdb -k
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "i386-unknown-freebsd".
(kgdb) symbol-file kernel
Reading symbols from kernel...(no debugging symbols found)...done.
(kgdb) exec-file /usr/crash/kernel.0
(kgdb) core-file /usr/crash/vmcore.0
IdlePTD 3465216
initial pcb at 2ba4a0
panicstr: general protection fault
panic messages:
---
Fatal trap 9: general protection fault while in kernel mode
instruction pointer = 0x8:0xc024b4a3
stack pointer = 0x10:0xc76a9cf0
frame pointer = 0x10:0xc76a9d10
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 3
current process = 344 (XFree86)
interrupt mask = none
trap number = 9
panic: general protection fault
syncing disks... 30 29 21 10
done
Uptime: 11m46s
dumping to dev #ad/0x20001, offset 205184
dump ata0: resetting devices .. done
95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71
70 69
68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45
44 43 4
2 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18
17 16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---
#0 0xc013ebba in dumpsys ()
(kgdb) where
#0 0xc013ebba in dumpsys ()
#1 0xc013e9db in boot ()
#2 0xc013ed58 in poweroff_wait ()
#3 0xc02575bd in trap_fatal ()
#4 0xc0256fcb in trap ()
#5 0xc024b4a3 in i686_mrstoreone ()
#6 0xc024b3e9 in i686_mrstore ()
#7 0xc024ba21 in i686_mrset ()
#8 0xc0252a81 in mem_range_attr_set ()
#9 0xc02529fd in mem_ioctl ()
#10 0xc02528b4 in mmioctl ()
#11 0xc017545e in spec_ioctl ()
#12 0xc0175189 in spec_vnoperate ()
#13 0xc0209a3d in ufs_vnoperatespec ()
#14 0xc0171a44 in vn_ioctl ()
#15 0xc014d10e in ioctl ()
#16 0xc0257869 in syscall2 ()
#17 0xc0249b95 in Xint0x80_syscall ()
#18 0x8091059 in ?? ()
#19 0x80955c7 in ?? ()
#20 0x87760dd in ?? ()
#21 0x8758e32 in ?? ()
#22 0x806b7cc in ?? ()
#23 0x80bab12 in ?? ()
#24 0x806b045 in ?? ()
(kgdb) quit
I'll provide more information if I can, as I write this, I have a new
kernel compiling to include within it the debugging symbols and the
debugger itself (my existing copy lacks these items).
--
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