On Wed, Sep 22, 2004 at 04:28:51PM -0400, John Baldwin wrote: > > 1) When MPS 1.4 is enabled with the BIOS setting and ACPI disabled either > > by BIOS or by unsetting `acpi_load' loader variable, the kernel panices > > immediately with "panic: Multiple entries for PCI IRQ 16" message. As one > > can see from #1 Bootlog, there are really two entries for IRQ16. I think > > this is the BIOS bug, but I also think the diagnostics for this situation > > should be more precise than that. > > There's not much more precise that can be done. mptable output would be > extremely helpful here. =============================================================================== MPTable, version 2.0.15 ------------------------------------------------------------------------------- MP Floating Pointer Structure: location: BIOS physical address: 0x000fb960 signature: '_MP_' length: 16 bytes version: 1.4 checksum: 0x7f mode: Virtual Wire ------------------------------------------------------------------------------- MP Config Table Header: physical address: 0x000f62b0 signature: 'PCMP' base table length: 256 version: 1.4 checksum: 0xcb OEM ID: 'SiS ' Product ID: '740 ' OEM table pointer: 0x00000000 OEM table size: 0 entry count: 25 local APIC address: 0xfee00000 extended table length: 0 extended table checksum: 0 ------------------------------------------------------------------------------- MP Config Base Table Entries: -- Processors: APIC ID Version State Family Model Step Flags 0 0x14 BSP, usable 6 7 1 0x0055 -- Bus: Bus ID Type 0 PCI 1 PCI 2 ISA -- I/O APICs: APIC ID Version State Address 2 0x11 usable 0xfec00000 -- I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# ExtINT conforms conforms 2 0 2 0 INT conforms conforms 2 1 2 1 INT conforms conforms 2 0 2 2 INT conforms conforms 2 3 2 3 INT conforms conforms 2 4 2 4 INT conforms conforms 2 6 2 6 INT conforms conforms 2 7 2 7 INT active-hi edge 2 8 2 8 INT conforms conforms 2 9 2 9 INT conforms conforms 2 12 2 12 INT conforms conforms 2 13 2 13 INT conforms conforms 2 14 2 14 INT conforms conforms 2 15 2 15 INT active-lo level 0 2:A 2 16 INT active-lo level 1 0:A 2 16 INT active-lo level 0 10:A 2 18 INT active-lo level 0 2:D 2 20 INT active-lo level 0 2:A 2 23 -- Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# ExtINT conforms conforms 0 0:A 255 0 NMI conforms conforms 0 0:A 255 1 =============================================================================== > > #2 Panic log > > ------------ > > panic: _sx_xlock (user map): xlock already held _at_ > > /var/data/5/src/sys/vm/vm_map.c:2997 cpuid = 0 > > KDB: stack backtrace: > > kdb_backtrace(100,c0f794e0,c0e983c8,1,bb5) at kdb_backtrace+0x29 > > panic(c05eaffa,c05d320c,c05fd313,c05fd393,bb5) at panic+0x114 > > _sx_xlock(c0e983c8,c05fd393,bb5) at _sx_xlock+0x44 > > _vm_map_lock_read(c0e98384,c05fd393,bb5,1f49a0c,c113692c) at > > _vm_map_lock_read+0x37 vm_map_lookup(c9f49a64,bfca2000,1,c9f49a68,c9f49a58) > > at vm_map_lookup+0x28 vm_fault(c0e98384,bfca2000,1,0,c0f794e0) at > > vm_fault+0x66 > > trap_pfault(c9f49b2c,0,bfca253c) at trap_pfault+0xd2 > > trap(18,10,10,c0e98444,c0c95c48) at trap+0x30d > > calltrap() at calltrap+0x5 > > --- trap 0xc, eip = 0xc05b541c, esp = 0xc9f49b6c, ebp = 0xc9f49b78 --- > > pmap_enter_quick(c0e98444,2894f000,c0d7c2e8,0,0) at pmap_enter_quick+0xc8 > > This is the real bug, can you do 'l *0xc05b541c' from kgdb? (kgdb) l *0xc05b541c 0xc05b541c is in pmap_enter_quick (/var/data/5/src/sys/i386/i386/pmap.c:2130). 2125 * entering the page into the current pmap. In order to support 2126 * quick entry into any pmap, one would likely use pmap_pte_quick. 2127 * But that isn't as quick as vtopte. 2128 */ 2129 pte = vtopte(va); 2130 if (*pte) { 2131 if (mpte != NULL) { 2132 pmap_unwire_pte_hold(pmap, mpte); 2133 mpte = NULL; 2134 } -- Pavel Gubin TUSC&R / Industrial Electronics dept / System Administrator 2:5005/14_at_fidonet / Phone +7-3822-423067 / ICQ 28835566Received on Thu Sep 23 2004 - 02:26:24 UTC
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