From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eskil Heyn Olsen Subject: Unexpected IO-APIC warning. Date: 26 Jul 2002 13:07:51 -0700 Sender: linux-smp-owner@vger.kernel.org Message-ID: <1027714071.19238.5.camel@sleipnir> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: Content-Type: text/plain; charset="us-ascii" To: linux-smp@vger.kernel.org I'm booting 2.4.18 on a machine with the intel E7500 motherboard and two Xeon cpus, and I get the WARNING: unexpected IO-APIC, please mail to linux-smp@vger.kernel.org Here's the boot messages ; Linux version 2.4.18 (eskil@sleipnir) (gcc version 2.96 20000731 (Red Hat Linux 7.2 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009e800 (usable) BIOS-e820: 000000000009e800 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000003fef0000 (usable) BIOS-e820: 000000003fef0000 - 000000003feff000 (ACPI data) BIOS-e820: 000000003feff000 - 000000003ff00000 (ACPI NVS) BIOS-e820: 000000003ff00000 - 000000003ff80000 (usable) BIOS-e820: 000000003ff80000 - 0000000040000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ff800000 - 00000000ffc00000 (reserved) BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved) 127MB HIGHMEM available. found SMP MP-table at 000f66c0 hm, page 000f6000 reserved twice. hm, page 000f7000 reserved twice. hm, page 0009e000 reserved twice. hm, page 0009f000 reserved twice. On node 0 totalpages: 262016 zone(0): 4096 pages. zone(1): 225280 pages. zone(2): 32640 pages. Intel MultiProcessor Specification v1.4 Virtual Wire compatibility mode. OEM ID: Product ID: SE7500CW2 APIC at: 0xFEE00000 Processor #0 Unknown CPU [15:2] APIC version 20 Processor #6 Unknown CPU [15:2] APIC version 20 I/O APIC #2 Version 32 at 0xFEC00000. I/O APIC #3 Version 32 at 0xFEC80000. I/O APIC #4 Version 32 at 0xFEC80400. Processors: 2 Kernel command line: auto BOOT_IMAGE=factory-reset ro root=305 noconfirm Initializing CPU#0 Detected 2192.925 MHz processor. Calibrating delay loop... 4377.80 BogoMIPS Memory: 1029196k/1048064k available (1138k kernel code, 18412k reserved, 253k data) Dentry-cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes) Page-cache hash table entries: 262144 (order: 8, 1048576 bytes) CPU: L1 I cache: 12K, L1 D cache: 8K CPU: L2 cache: 512K CPU: Physical Processor ID: 0 Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX CPU: L1 I cache: 12K, L1 D cache: 8K CPU: L2 cache: 512K CPU: Physical Processor ID: 0 Intel machine check reporting enabled on CPU#0. CPU0: Intel(R) XEON(TM) CPU 2.20GHz stepping 04 per-CPU timeslice cutoff: 1463.11 usecs. enabled ExtINT on CPU#0 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 Booting processor 1/6 eip 2000 Initializing CPU#1 masked ExtINT on CPU#1 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 Calibrating delay loop... 4377.80 BogoMIPS CPU: L1 I cache: 12K, L1 D cache: 8K CPU: L2 cache: 512K CPU: Physical Processor ID: 3 Intel machine check reporting enabled on CPU#1. CPU1: Intel(R) XEON(TM) CPU 2.20GHz stepping 04 Total of 2 processors activated (8755.60 BogoMIPS). WARNING: No sibling found for CPU 0. WARNING: No sibling found for CPU 1. ENABLING IO-APIC IRQs Setting 2 in the phys_id_present_map ...changing IO-APIC physical APIC ID to 2 ... ok. Setting 3 in the phys_id_present_map ...changing IO-APIC physical APIC ID to 3 ... ok. Setting 4 in the phys_id_present_map ...changing IO-APIC physical APIC ID to 4 ... ok. ..TIMER: vector=0x31 pin1=2 pin2=0 testing the IO APIC....................... WARNING: unexpected IO-APIC, please mail to linux-smp@vger.kernel.org .................................... done. Using local APIC timer interrupts. calibrating APIC timer ... ..... CPU clock speed is 2192.9721 MHz. ..... host bus clock speed is 99.6804 MHz. cpu: 0, clocks: 996804, slice: 332268 CPU0 cpu: 1, clocks: 996804, slice: 332268 CPU1 checking TSC synchronization across CPUs: passed. Waiting on wait_init_idle (map = 0x2) All processors have done init_idle PCI: PCI BIOS revision 2.10 entry at 0xfd921, last bus=4 PCI: Using configuration type 1 PCI: Probing PCI hardware Unknown bridge resource 0: assuming transparent Unknown bridge resource 2: assuming transparent Unknown bridge resource 0: assuming transparent Unknown bridge resource 1: assuming transparent Unknown bridge resource 2: assuming transparent Unknown bridge resource 0: assuming transparent Unknown bridge resource 1: assuming transparent Unknown bridge resource 2: assuming transparent Unknown bridge resource 2: assuming transparent PCI: Using IRQ router default [8086/2480] at 00:1f.0 PCI->APIC IRQ transform: (B0,I29,P0) -> 16 PCI->APIC IRQ transform: (B0,I29,P1) -> 19 PCI->APIC IRQ transform: (B0,I31,P0) -> 17 PCI->APIC IRQ transform: (B0,I31,P1) -> 17 PCI->APIC IRQ transform: (B4,I3,P0) -> 21 PCI->APIC IRQ transform: (B4,I4,P0) -> 20 PCI->APIC IRQ transform: (B4,I5,P0) -> 23 PCI->APIC IRQ transform: (B4,I6,P0) -> 22 Let me know if theres anything else you need. -- eskil ---