Date: Mon, 25 Jul 2005 12:15:49 -0400 From: Kris Kennaway <kris@obsecurity.org> To: dd@FreeBSD.org, phk@FreeBSD.org, current@FreeBSD.org Subject: Panic during devfs ruleset operations on 6.0 Message-ID: <20050725161548.GA50175@xor.obsecurity.org>
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--2oS5YaxWCcQjTEyO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline I'm getting the following on multiple 6.0 machines (UP and SMP): panic: ruleset 10 already running db> wh 3747 Tracing pid 3747 tid 100279 td 0xc5d80300 kdb_enter(c08fffa1,1,c08f93ee,ea2cfb58,c5d80300) at kdb_enter+0x30 panic(c08f93ee,a,3,8002440b,c5b666c0) at panic+0x13d devfs_ruleset_applydm(cc0d3820,cb22fa00,0,c5d80300,cb22fa00) at devfs_ruleset_applydm+0x29 devfs_rules_ioctl(c5c2c400,8002440b,c5b666c0,c5d80300,c095cd80) at devfs_rules_ioctl+0x45a devfs_rioctl(ea2cfbf0,c0927fa3,c08161eb,c8b91660,0) at devfs_rioctl+0x90 VOP_IOCTL_APV(c095cd80,ea2cfbf0,ea2cfc47,ea2cfc48,c09ad320) at VOP_IOCTL_APV+0xc4 vn_ioctl(cb933990,8002440b,c5b666c0,cc047680,c5d80300) at vn_ioctl+0x18f ioctl(c5d80300,ea2cfd04,c,28102000,3) at ioctl+0x45d syscall(3b,3b,3b,bfbfdf58,bfbfe0f1) at syscall+0x2a2 Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (54, FreeBSD ELF32, ioctl), eip = 0x280c007f, esp = 0xbfbfdeac, ebp = 0xbfbfdec8 --- It comes from running the following operations: mount -t devfs foo ${chroot}/dev devfs -m ${chroot}/dev ruleset 10 devfs -m ${chroot}/dev rule add path 'md*' hide devfs -m ${chroot}/dev rule applyset These devfs operations are needed to work around another devfs panic, which occurs when device nodes are removed from inside a devfs mount at the same time the devfs is unmounted. This panic is going to be very disruptive for the 6.0 package builds until it can be fixed. Kris --2oS5YaxWCcQjTEyO Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFC5RAzWry0BWjoQKURAh5qAJ0T9KKV/eiF64bT5/VIfa8nkEeOUACfU4IL NdYH9goMuKkdnBMzbO25HCY= =DPL0 -----END PGP SIGNATURE----- --2oS5YaxWCcQjTEyO--
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