Date: Tue, 15 Sep 2009 14:14:31 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Mel Flynn <mel.flynn+fbsd.current@mailing.thruhere.net> Cc: freebsd-current@freebsd.org Subject: Re: Panic in kern_access Message-ID: <20090915111431.GD47688@deviant.kiev.zoral.com.ua> In-Reply-To: <200909142024.49226.mel.flynn%2Bfbsd.current@mailing.thruhere.net> References: <200909142024.49226.mel.flynn%2Bfbsd.current@mailing.thruhere.net>
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[-- Attachment #1 --] On Mon, Sep 14, 2009 at 08:24:49PM +0200, Mel Flynn wrote: > Hi, > > below some crash info. However, since kib@ made some fixes that seem > to relate to this, I shall rebuild my kernel with new sources. No my fixes were related to the issue, AFAIR. > > At the time I was building various ports in a jail and asleep, so no other > contributing factors. > > panic: free: address 0xc62e0e00(0xc62e0000) has not been allocated. > > #0 doadump () at pcpu.h:246 > 246 pcpu.h: No such file or directory. > in pcpu.h > (kgdb) #0 doadump () at pcpu.h:246 > #1 0xc0642b57 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:416 > #2 0xc0642e49 in panic (fmt=Variable "fmt" is not available. > ) at /usr/src/sys/kern/kern_shutdown.c:579 > #3 0xc062fcfe in free (addr=0x0, mtp=0xc091c330) > at /usr/src/sys/kern/kern_malloc.c:444 > #4 0xc063b018 in crfree (cr=0xc795ea80) at /usr/src/sys/kern/kern_prot.c:1840 I want to see the output of p/x cr and p/x cr->cr_groups from the frame 4. > #5 0xc06d1ea2 in kern_accessat (td=0xcd5ea6c0, fd=-100, > path=0x2808d000 <Address 0x2808d000 out of bounds>, > pathseg=UIO_USERSPACE, flags=0, mode=0) > at /usr/src/sys/kern/vfs_syscalls.c:2145 > #6 0xc06d1f56 in kern_access (td=0xcd5ea6c0, > path=0x2808d000 <Address 0x2808d000 out of bounds>, > pathseg=UIO_USERSPACE, mode=0) at /usr/src/sys/kern/vfs_syscalls.c:2104 > #7 0xc06d1f89 in access (td=0xcd5ea6c0, uap=0xf9129cf8) > at /usr/src/sys/kern/vfs_syscalls.c:2079 > #8 0xc086fff5 in syscall (frame=0xf9129d38) > at /usr/src/sys/i386/i386/trap.c:1073 > #9 0xc0853a50 in Xint0x80_syscall () > at /usr/src/sys/i386/i386/exception.s:261 > #10 0x00000033 in ?? () > Previous frame inner to this frame (corrupt stack?) > > 8.0-BETA4 FreeBSD 8.0-BETA4 #14 r196875M. vmcore available if needed and I can > rollback sources to r196875 for proper source refs, in case r197041 does not > address this crash. It does not. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (FreeBSD) iEYEARECAAYFAkqvdxcACgkQC3+MBN1Mb4jDqQCgkbR5YBEw5sqoWFl2GNZTNj+P oZEAoNhCEto/dgAi/s40V01YJL1iZiKR =FGdx -----END PGP SIGNATURE-----
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