Date: Fri, 16 Dec 2005 16:07:02 -0500 From: Anish Mistry <mistry.7@osu.edu> To: freebsd-current@freebsd.org Subject: LOR #155 Message-ID: <200512161607.24657.mistry.7@osu.edu>
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--nextPart2979708.qt17fU5D22 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline I got LOR #155 *I think* when unload acpi_video while testing some of=20 jhb's patches. acpi_video0: detached lock order reversal: (sleepable after non-sleepable) 1st 0xc104e8c8 mt_zone (UMA zone) @ /usr/src/sys/vm/uma_core.c:2452 2nd 0xc2424d34 user map (user map) @ /usr/src/sys/vm/vm_map.c:2993 KDB: stack backtrace: witness_checkorder(c2424d34,9,c062abe6,bb1,cc9dbaac) at=20 witness_checkorder+0x5aa _sx_xlock(c2424d34,c062abe6,bb1,1000001,cc9dbaac) at _sx_xlock+0x3c vm_map_lookup(cc9dbaac,0,1,cc9dbab0,cc9dbaa0,cc9dbaa4,cc9dba87,cc9dba88)=20 at vm_map_lookup+0x24 vm_fault(c2424cf0,0,1,0,c25ed1a0) at vm_fault+0x63 trap_pfault(15) at trap_pfault+0x12c trap(8,28,28,0,c104e8c0) at trap+0x37a calltrap() at calltrap+0x5 =2D-- trap 0xc, eip =3D 0xc05a8ec8, esp =3D 0xcc9dbc08, ebp =3D 0xcc9dbc1c = =2D-- uma_zfree_internal(0,1,3) at uma_zfree_internal+0xb8 malloc_uninit(c078f020,c078ee1c,0,cc9dbc70,c04aebc2) at=20 malloc_uninit+0xb3 linker_file_unload(c2049b00,0,0,c25ed1a0,c25ebadc) at=20 linker_file_unload+0x2f8 kern_kldunload(0,cc9dbd04,2,0,3) at kern_kldunload+0x68 syscall(3b,3b,3b,5,bfbfe9de) at syscall+0x166 Xint0x80_syscall() at Xint0x80_syscall+0x1f =2D-- syscall (444, FreeBSD ELF32, kldunloadf), eip =3D 0x280ab48b, esp =3D= =20 0xbfbfe464, ebp =3D 0xbfbfe8a8 --- KDB: enter: witness_checkorder [thread pid 717 tid 100061 ] Stopped at kdb_enter+0x2c: leal 0(%esi),%esi db> bt Tracing pid 717 tid 100061 td 0xc25ed1a0 kdb_enter(c05ff2df,9,c062abe6,bb1,cc9dbaac) at kdb_enter+0x2c _sx_xlock(c2424d34,c062abe6,bb1,1000001,cc9dbaac) at _sx_xlock+0x3c vm_map_lookup(cc9dbaac,0,1,cc9dbab0,cc9dbaa0,cc9dbaa4,cc9dba87,cc9dba88)=20 at vm_map_lookup+0x24 vm_fault(c2424cf0,0,1,0,c25ed1a0) at vm_fault+0x63 trap_pfault(15) at trap_pfault+0x12c trap(8,28,28,0,c104e8c0) at trap+0x37a calltrap() at calltrap+0x5 =2D-- trap 0xc, eip =3D 0xc05a8ec8, esp =3D 0xcc9dbc08, ebp =3D 0xcc9dbc1c = =2D-- uma_zfree_internal(0,1,3) at uma_zfree_internal+0xb8 malloc_uninit(c078f020,c078ee1c,0,cc9dbc70,c04aebc2) at=20 malloc_uninit+0xb3 linker_file_unload(c2049b00,0,0,c25ed1a0,c25ebadc) at=20 linker_file_unload+0x2f8 kern_kldunload(0,cc9dbd04,2,0,3) at kern_kldunload+0x68 syscall(3b,3b,3b,5,bfbfe9de) at syscall+0x166 Xint0x80_syscall() at Xint0x80_syscall+0x1f =2D-- syscall (444, FreeBSD ELF32, kldunloadf), eip =3D 0x280ab48b, esp =3D= =20 0xbfbfe464, ebp =3D 0xbfbfe8a8 --- db>=20 =2D-=20 Anish Mistry --nextPart2979708.qt17fU5D22 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQBDoyyMxqA5ziudZT0RAu3YAKDd3WLJjbgu6dHqctCRWFCK7H+0egCcDLSK qzEo/Klk/YGGkLuWtZZ1OCE= =mZ33 -----END PGP SIGNATURE----- --nextPart2979708.qt17fU5D22--
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