Date: Fri, 14 Feb 2003 13:14:14 -0800 From: Kris Kennaway <kris@obsecurity.org> To: Kris Kennaway <kris@obsecurity.org> Cc: Thomas Moestl <tmoestl@gmx.net>, Morten Rodal <morten@rodal.no>, current@FreeBSD.ORG, alfred@FreeBSD.org, tjr@FreeBSD.org Subject: Re: Panic in fork() Message-ID: <20030214211414.GC2655@rot13.obsecurity.org> In-Reply-To: <20030208220456.GB15257@rot13.obsecurity.org> References: <20030208092406.GA12104@rot13.obsecurity.org> <20030208110512.GB12696@rot13.obsecurity.org> <20030208141542.GC11725@slurp.rodal.no> <20030208151226.GB624@crow.dom2ip.de> <20030208220456.GB15257@rot13.obsecurity.org>
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--wzJLGUyc3ArbnUjN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Feb 08, 2003 at 02:04:56PM -0800, Kris Kennaway wrote: > OK, I suspected that. >=20 > tjr was looking into this last night and proposed the following patch: >=20 > http://people.freebsd.org/~tjr/kf.diff OK, I got another panic with this patch in place, so I guess that's not enough. Maybe I should try Alfred's suggestion of changing the locks to exclusive locks. Fatal trap 12: page fault while in kernel mode cpuid =3D 1; lapic.id =3D 00000000 fault virtual address =3D 0x14 fault code =3D supervisor read, page not present instruction pointer =3D 0x8:0xc01a1e2d stack pointer =3D 0x10:0xe3639c74 frame pointer =3D 0x10:0xe3639cbc code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, def32 1, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 97943 (sh) kernel: type 12 trap, code=3D0 Stopped at fork1+0x3fd: cmpl %ebx,0x14(%eax) db> trace fork1(ca1458c0,14,0,e3639cd4,ca179068) at fork1+0x3fd fork(ca1458c0,e3639d10,c03445dc,407,0) at fork+0x52 syscall(2f,2f,2f,0,80fe000) at syscall+0x28e Xint0x80_syscall() at Xint0x80_syscall+0x1d --- syscall (2, FreeBSD ELF32, fork), eip =3D 0x807bd63, esp =3D 0xbfbff9fc= , ebp =3D 0xbfbffa28 --- db> Kris --wzJLGUyc3ArbnUjN Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (FreeBSD) iD8DBQE+TVwlWry0BWjoQKURAghMAJ47pN31gX9+AQPfhUpftznLg9jXzgCfS2bK JlF3C8O85cKWAE7smAyHH4k= =0nU0 -----END PGP SIGNATURE----- --wzJLGUyc3ArbnUjN-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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