Date: Fri, 06 Sep 2013 09:00:53 -0700 From: Sean Bruno <sean_bruno@yahoo.com> To: "freebsd-current@FreeBSD.org" <freebsd-current@FreeBSD.org> Subject: Interesting panic from the Yahoo builder (10-current) Message-ID: <1378483253.1598.3.camel@localhost>
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--=-aVW7bwHeOtnYoGApshHr Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Our "yBSD" builder needs to mount a disk image temporarily that has a dos partition (for openstack-ish things) to put configs into it. It seems that under high stress, we can squeeze a panic out of it in namei(). Sean Unread portion of the kernel message buffer: panic: namei: nameiop contaminated with flags cpuid =3D 8 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe048d8e5= 3b0 kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe048d8e5460 vpanic() at vpanic+0x126/frame 0xfffffe048d8e54a0 kassert_panic() at kassert_panic+0x136/frame 0xfffffe048d8e5510 namei() at namei+0x2c8/frame 0xfffffe048d8e5600 msdosfs_mount() at msdosfs_mount+0x556/frame 0xfffffe048d8e57c0 vfs_donmount() at vfs_donmount+0xc35/frame 0xfffffe048d8e5aa0 sys_nmount() at sys_nmount+0x72/frame 0xfffffe048d8e5ae0 amd64_syscall() at amd64_syscall+0x223/frame 0xfffffe048d8e5bf0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe048d8e5bf0 --- syscall (378, FreeBSD ELF64, sys_nmount), rip =3D 0x8000a8b68a, rsp =3D= 0x7fffffffd508, rbp =3D 0x7fffffffdb30 --- Uptime: 34m55s Dumping 1140 out of 16350 MB:..2%..12%..22%..31%..41%..51%..61%..71%..82%..= 92% Reading symbols from /boot/modules/msdosfs.ko...done. Loaded symbols for /boot/modules/msdosfs.ko #0 doadump (textdump=3D1) at pcpu.h:227 227 pcpu.h: No such file or directory. in pcpu.h (kgdb) Hangup detected on fd 0 error detected on stdin --=-aVW7bwHeOtnYoGApshHr Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (FreeBSD) iQEcBAABAgAGBQJSKfwsAAoJEBkJRdwI6BaHa9sH/09E8AFLPm/DI7vtghsvYq0x xNrITWJnpr3OeTWBDzLm0JM2EdE5w/xqPHOtgWfEbcWMfJA2n5GDfI1Sr+46Q5vb dVB9fHu7gWkAWtCYd2vGf6fxerEKrHclJnyGtINhV7S2oZIVOt5JPJAU7O6mfSZl SvlrlZixk2pO7lQUYC1CHU8STpz70y2tj2tNlAzoFWFWgm4B5sWwj9gGNEcESlw2 16AzjFPnE+sC5mSSuSnomMEkVMN9mILAi1yje2Gh9llTpo5QcDhuN2VnSfQLyHtL t7kJi8l9xpOopLhI8gKGDnLJbgRAS5EiGfKvGyvrAVfi2eVHCA5FyVfV2Cu4obA= =sI/X -----END PGP SIGNATURE----- --=-aVW7bwHeOtnYoGApshHr--
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