Hi,
I'm having some system crashes from time to time. I had this before
but until recently I couldn't set my system so I could get crash
dumps.
My video card is a ATI Mobility Radeon 9700. I'm running FreeBSD
9.0-RELEASE for amd64. These are excerpts from two crash dumps text
files:
core.txt.3:
Fatal trap 28: machine check trap while in kernel mode
cpuid = 0; apic id = 00
instruction pointer = 0x20:0xffffffff816480a3
stack pointer = 0x28:0xffffff804a5eb970
frame pointer = 0x28:0xffffff804a5eb990
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, IOPL = 3
current process = 2254 (Xorg)
trap number = 28
panic: machine check trap
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff80869abe at kdb_backtrace+0x5e
#1 0xffffffff80833fb7 at panic+0x187
#2 0xffffffff80b18b80 at trap_fatal+0x290
#3 0xffffffff80b190c0 at trap+0x110
#4 0xffffffff80b0396f at calltrap+0x8
#5 0xffffffff816a305b at drm_ioctl+0x31b
#6 0xffffffff8075597b at devfs_ioctl_f+0x7b
#7 0xffffffff8087afb1 at kern_ioctl+0x111
#8 0xffffffff8087b1df at sys_ioctl+0xef
#9 0xffffffff80b18480 at amd64_syscall+0x450
#10 0xffffffff80b03c57 at Xfast_syscall+0xf7
Unread portion of the kernel message buffer:
MCA: Bank 4, Status 0xb200000000070f0f
MCA: Global Cap 0x0000000000000105, Status 0x0000000000000004
MCA: Vendor "AuthenticAMD", ID 0xf4a, APIC ID 0
MCA: CPU 0 UNCOR PCC BUSLG ??? ERR Other timed out
core.txt.4
Fatal trap 28: machine check trap while in kernel mode
cpuid = 0; apic id = 00
instruction pointer = 0x20:0xffffffff816462b6
stack pointer = 0x28:0xffffff804a5eb930
frame pointer = 0x28:0xffffff804a5eb940
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, IOPL = 3
current process = 2254 (Xorg)
trap number = 28
panic: machine check trap
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff80869abe at kdb_backtrace+0x5e
#1 0xffffffff80833fb7 at panic+0x187
#2 0xffffffff80b18b80 at trap_fatal+0x290
#3 0xffffffff80b190c0 at trap+0x110
#4 0xffffffff80b0396f at calltrap+0x8
#5 0xffffffff8164f3cc at radeon_cp_indirect+0x24c
#6 0xffffffff816a305b at drm_ioctl+0x31b
#7 0xffffffff8075597b at devfs_ioctl_f+0x7b
#8 0xffffffff8087afb1 at kern_ioctl+0x111
#9 0xffffffff8087b1df at sys_ioctl+0xef
#10 0xffffffff80b18480 at amd64_syscall+0x450
#11 0xffffffff80b03c57 at Xfast_syscall+0xf7
dmesg | grep agp
agp0: <VIA 8385 host to PCI bridge> on hostb0
drm.ko is loaded and agp is included in kernel.
AGP for the card seems to be properly detected:
dmesg | grep drm
drm0: <ATI Radeon RV350 Mobility 9600 M10 NP> on vgapci0
info: [drm] AGP at 0xe0000000 256MB
info: [drm] Initialized radeon 1.31.0 20080613
info: [drm] Setting GART location based on new memory map
info: [drm] Loading R300 Microcode
info: [drm] Num pipes: 1
grep -i "Direct rendering" /var/log/Xorg.0.log
(II) RADEON(0): Direct rendering enabled
The crash is not easily reproducible but seems to be more likely to
occur the more activity there is in the screen (like when scrolling a
window quite fast).
Any help is appreciated.
Thanks in advance.
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