Date: Fri, 22 Aug 2014 23:38:52 -0700 From: Xin Li <delphij@delphij.net> To: FreeBSD Current <freebsd-current@FreeBSD.org>, =?UTF-8?B?SmVhbi1Tw6li?= =?UTF-8?B?YXN0aWVuIFDDqWRyb24=?= <jean-sebastien.pedron@dumbbell.fr> Cc: re@freebsd.org Subject: Recent vt(4) broke moused when hw.vga.textmode=1 Message-ID: <53F836FC.9000104@delphij.net>
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Hi,
I have seen this panic via serial console, but the console is completely
unusable at the time. VGA console is full of '?'.
Booting single user mode, I can provoke the panic with '/etc/rc.d/moused
start ums0'.
===
Fatal trap 12: page fault while in kernel mode
cpuid = 7;
apic id = 0e
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x2c
cpuid = 6; fault code = supervisor read data, page not present
apic id = 0c
instruction pointer = 0x20:0xffffffff803abcf7
fault virtual address = 0x2c
stack pointer = 0x28:0xfffffe085f1b3880
fault code = supervisor read data, page not present
frame pointer = 0x28:0xfffffe085f1b38e0
instruction pointer = 0x20:0xffffffff803ae562
code segment = base 0x0, limit 0xfffff, type 0x1b
stack pointer = 0x28:0xfffffe083c9b9950
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, frame pointer
= 0x28:0xfffffe083c9b9a10
IOPL = 0
current process = code segment = base 0x0, limit
0xfffff, type 0x1b
The instruction pointer is Line 831 of "/usr/src/sys/dev/vt/vt_core.c".
Reverting /sys/dev/vt to r270269 would solve the panic, but I haven't
investigated further.
Cheers,
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