Date: Wed, 7 Sep 2005 12:36:44 +0200 From: Fabian Keil <freebsd-listen@fabiankeil.de> To: freebsd-current@freebsd.org Subject: Sound related LOR on 6.0-BETA4 Message-ID: <20050907123644.0d67d92f@localhost>
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[-- Attachment #1 --] After kldunloading snd_emu10k1 on 6.0-BETA4 I get: lock order reversal 1st 0xc1c01240 pcm0 (sound cdev) @ /usr/src/sys/modules/sound/sound/../../../dev/sound/pcm/sound.c:706 2nd 0xc1e7c940 sndstat (sndstat) @ /usr/src/sys/modules/sound/sound/../../../dev/sound/pcm/sndstat.c:256 KDB: stack backtrace: kdb_backtrace(0,ffffffff,c0723330,c07233d0,c06eb50c) at kdb_backtrace+0x29 witness_checkorder(c1e7c940,9,c1e77fe4,100) at witness_checkorder+0x564 _sx_xlock(c1e7c940,c1e77fe4,100,0,c1ad0200) at _sx_xlock+0x50 sndstat_unregister(c1a89a00,c1e42e80,c1e42e80,c1a89a00,c1a89a00) at sndstat_unregister+0x1c pcm_unregister(c1a89a00,c1a89a00,c1a89a00,c1c00a40,de994c30) at pcm_unregister+0xf6 emu_pci_detach(c1a89a00) at emu_pci_detach+0xf device_detach(c1a89a00) at device_detach+0x70 devclass_delete_driver(c19c7380,c1efe9d0,c1c01e40,c1d07100,0) at devclass_delete_driver+0x8c driver_module_handler(c1c01e40,1,c1efea4c,c1c01e40,de994cb0) at driver_module_handler+0xa5 module_unload(c1c01e40,0,c0712a00,c06a9dd5,1fb) at module_unload+0x37 linker_file_unload(c1d07100,0,0,c1ce3d80,de994cdc) at linker_file_unload+0x72 kern_kldunload(c1ce3d80,5,0,de994d30,c0672727) at kern_kldunload+0x7c kldunloadf(c1ce3d80,de994d04,2,1,292) at kldunloadf+0x1e syscall(3b,3b,3b,5,bfbfed5e) at syscall+0x22f Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (444, FreeBSD ELF32, kldunloadf), eip = 0x280b45b7, esp = 0xbfbfe7bc, ebp = 0xbfbfec28 --- Fabian -- http://www.fabiankeil.de/ [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFDHsLCjV8GA4rMKUQRAqt9AKC7xPEjB7IL4lh3+uxS9hs5E44suACgl40a O3GD7hcx5gDe5CPlB70o3nk= =cxEL -----END PGP SIGNATURE-----
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