From owner-freebsd-current@FreeBSD.ORG Fri Sep 6 16:01:05 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 590F36B6 for ; Fri, 6 Sep 2013 16:01:05 +0000 (UTC) (envelope-from sean_bruno@yahoo.com) Received: from nm5-vm0.bullet.mail.bf1.yahoo.com (nm5-vm0.bullet.mail.bf1.yahoo.com [98.139.213.150]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id A318D2AF6 for ; Fri, 6 Sep 2013 16:01:04 +0000 (UTC) Received: from [66.196.81.172] by nm5.bullet.mail.bf1.yahoo.com with NNFMP; 06 Sep 2013 16:00:57 -0000 Received: from [68.142.230.70] by tm18.bullet.mail.bf1.yahoo.com with NNFMP; 06 Sep 2013 16:00:57 -0000 Received: from [127.0.0.1] by smtp227.mail.bf1.yahoo.com with NNFMP; 06 Sep 2013 16:00:57 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1378483257; bh=J3PuKOdIzVf1Ax272GI6si9fV1fhBGnPNzx/I1G/cJQ=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:X-Rocket-Received:Subject:From:Reply-To:To:Content-Type:Date:Message-ID:Mime-Version:X-Mailer; b=gAIdtXhMDFZLfDqOn7/MbTvMcckRMjBpTQq20ot2jfVfFK4s5F0yb63LXFRq66zRcAwJHbIFcHKOKm/SnSthCpfQ2zfZvJ/Vhk7ii2JW6jEe2R4sDZH+L+hZmTg2ArrUTitZOPo01+lv4Zx6HolckKK64X5UjL1KHMvHMvcAD1c= X-Yahoo-Newman-Id: 374652.34611.bm@smtp227.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: s8PYUpoVM1kz54XwjknNr96xy4nyK51rrY52RK65K7hCq0A fJXn.miQuEjNBeI3J4R9BVMgbaYOYE4bNgGnNH0Ef8.QKcG8UIa0cJnZKmNE 3E_.MyB1quPSGcZWhBqQzfWutEHS_ykTh_wpj1_cCtkJDQ4.2vTs3yLjhOIS iIPizv5Cb1.rWDRp0uTEXTvBcHBKDfryO9DBizZ8iRk1awTh1KGs5prZe5Ot M9YjSDiKIROUCLeoThxne.MMoIjMNCuXda8aHXLlAf5hCKiPXe.VrKlhrOEz kNOdCFk4OJcM4WuMW7OfrsHcW62c7D8lbUc4mYE7vyiIxn2m8Ja9VN215ryy ygl9DLR_JbJT7C_2g2Ei.c_FsESR4AnnisxQTZsvw9eebBUws9ljsXjajiMo h_gOn7qRfv1nQx3IVKqmm3AnHxSGPtbl2Zu4xbhfHMlvLDeWlM_MdQk7T9LX J2hTqaOZPacbQkiHCqkAqZjbYXkPPohQFotH0KNOpQ2aWMBWw5u9PPhEcESd CPNbRdrJ_XTklVzBQw_hnCZiHSRZRohMULXmVJTqy14VNHPWmdIg- X-Yahoo-SMTP: u5BKR6OswBC_iZJVfGRoMkTIpc8pEA4- X-Rocket-Received: from [192.168.43.121] (sean_bruno@70.197.6.169 with ) by smtp227.mail.bf1.yahoo.com with SMTP; 06 Sep 2013 16:00:57 +0000 UTC Subject: Interesting panic from the Yahoo builder (10-current) From: Sean Bruno To: "freebsd-current@FreeBSD.org" Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-aVW7bwHeOtnYoGApshHr" Date: Fri, 06 Sep 2013 09:00:53 -0700 Message-ID: <1378483253.1598.3.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: sbruno@freebsd.org List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Sep 2013 16:01:05 -0000 --=-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--