Date: Sun, 1 Aug 1999 09:22:06 -0700 (PDT) From: peter@holm.cc To: freebsd-gnats-submit@freebsd.org Subject: kern/12910: Fatal trap 12: page fault in linux_misc.c:175 [PATCH] Message-ID: <19990801162206.0C10D14C0D@hub.freebsd.org>
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>Number: 12910
>Category: kern
>Synopsis: Fatal trap 12: page fault in linux_misc.c:175 [PATCH]
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Aug 1 09:30:00 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Peter Holm
>Release: current
>Organization:
Holm Computer Consulting
>Environment:
FreeBSD 4.0-CURRENT #2: Sun Aug 1 12:39:33 CEST 1999
pho@current.risby.dk:/usr/src/sys/compile/PHO
>Description:
FreeBSD 4.0-CURRENT #2: Sun Aug 1 12:39:33 CEST 1999
pho@current.risby.dk:/usr/src/sys/compile/PHO
Sun Aug 1 12:45:03 CEST 1999
FreeBSD/i386 (current.risby.dk) (ttyd0)
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x77691a04
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0264f8f
stack pointer = 0x10:0xc861ede0
frame pointer = 0x10:0xc861ee48
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 = 252 (syscall.linux)
interrupt mask = none
kernel: type 12 trap, code=0
Stopped at copystr+0x13: lodsb (%esi)
db> trace
copystr(c861ef04,c7c0c7e0,c861ee8c,c0a7eb50,77691a04) at copystr+0x13
_end(c7c0c7e0,c861ef80,77691a04,294f2086,754ed7a3) at 0xc0a7a21c
syscall(2f,2f,2f,754ed7a3,294f2086) at syscall+0x182
Xint0x80_syscall() at Xint0x80_syscall+0x26
db>
>How-To-Repeat:
>Fix:
*** sys/i386/linux/linux_misc.c~ Sat Jul 10 16:47:41 1999
--- sys/i386/linux/linux_misc.c Sun Aug 1 15:00:04 1999
***************
*** 172,178 ****
locked = 0;
vp = NULL;
! NDINIT(&ni, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE, args->library, p);
error = namei(&ni);
if (error)
goto cleanup;
--- 172,178 ----
locked = 0;
vp = NULL;
! NDINIT(&ni, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, args->library, p);
error = namei(&ni);
if (error)
goto cleanup;
>Release-Note:
>Audit-Trail:
>Unformatted:
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