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Date:      Fri, 24 Feb 2012 13:27:24 +0100
From:      Bengt Ahlgren <bengta@sics.se>
To:        emulation@freebsd.org
Subject:   [Bengt Ahlgren] 8.3-PRERELEASE panic in linux emulation
Message-ID:  <uh762ewxvpv.fsf@P142.sics.se>

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Hello!

Perhaps emulation@ is a better place to report this problem?

Bengt


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From: Bengt Ahlgren <bengta@sics.se>
To: stable@freebsd.org
Subject: 8.3-PRERELEASE panic in linux emulation
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Date: Thu, 23 Feb 2012 17:26:32 +0100
Message-ID: <uh7mx89ecsn.fsf@P142.sics.se>
Xref: P142.sics.se bug-reports:179
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Hi!

I get a consistent panic when starting acroread after updating to
8.3-PRERELEASE.  An 8.2-STABLE from Feb 4th was OK.  Can provide more
info if needed.

Bengt

FreeBSD xx.yy.zz 8.3-PRERELEASE FreeBSD 8.3-PRERELEASE #13 r231999: Wed Feb 22 21:01:38 CET 2012     bengta@P142.sics.se:/usr/obj/usr/src/sys/P142-82  i386

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0xbfbfdffc
fault code              = supervisor write, page not present
instruction pointer     = 0x20:0xc50b396c
stack pointer           = 0x28:0xe7481a6c
frame pointer           = 0x28:0xe7481a90
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         = 1997 (bash)
trap number             = 12
panic: page fault
KDB: stack backtrace:
db_trace_self_wrapper(c091af2a,70797420,78302065,a0d6231,c5d6b600,...) at db_trace_self_wrapper+0x26
kdb_backtrace(c0919061,c09b49a0,c0900251,e7481910,e7481910,...) at kdb_backtrace+0x2a
panic(c0900251,c0941cab,c5c246e8,1,1,...) at panic+0xaf
trap_fatal(c0670d02,0,e7481964,80400,c5c24580,...) at trap_fatal+0x353
trap_pfault(e74819cc,bfbfe190,c5c24580,202,c5cecac0,...) at trap_pfault+0x87
trap(e7481a2c) at trap+0x453
calltrap() at calltrap+0x6
--- trap 0xc, eip = 0xc50b396c, esp = 0xe7481a6c, ebp = 0xe7481a90 ---
elf_linux_fixup(e7481c0c,e7481b98,c065ca92,c60ffce8,100000,...) at elf_linux_fixup+0x33c
kern_execve(c5c24580,e7481c3c,0,8112710,8116cd8,...) at kern_execve+0x7d6
linux_execve(c5c24580,e7481cec,c,c,c,...) at linux_execve+0xa7
syscall(e7481d28) at syscall+0x372
Xint0x80_syscall() at Xint0x80_syscall+0x21
--- syscall (11, Linux ELF, linux_execve), eip = 0x281e0d4a, esp = 0xbfbfd644, ebp = 0xbfbfd7e8 ---

#0  doadump () at pcpu.h:244
#1  0xc05de609 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:441
#2  0xc05de84f in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:614
#3  0xc08b22c3 in trap_fatal (frame=0xe7481a2c, eva=3217022972) at /usr/src/sys/i386/i386/trap.c:981
#4  0xc08b2357 in trap_pfault (frame=0xe7481a2c, usermode=0, eva=3217022972) at /usr/src/sys/i386/i386/trap.c:843
#5  0xc08b3133 in trap (frame=0xe7481a2c) at /usr/src/sys/i386/i386/trap.c:562
#6  0xc089bedc in calltrap () at /usr/src/sys/i386/i386/exception.s:168
#7  0xc50b396c in elf_linux_fixup (stack_base=0xe7481c0c, imgp=0xe7481b98) at /usr/src/sys/modules/linux/../../i386/linux/linux_sysvec.c:288
#8  0xc05ac636 in kern_execve (td=0xc5c24580, args=0xe7481c3c, mac_p=0x0) at /usr/src/sys/kern/kern_exec.c:551
#9  0xc50ab387 in linux_execve (td=0xc5c24580, args=0xe7481cec) at /usr/src/sys/modules/linux/../../i386/linux/linux_machdep.c:143
#10 0xc08b2902 in syscall (frame=0xe7481d28) at subr_syscall.c:114
#11 0xc089bf41 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:266
#12 0x00000033 in ?? ()


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