From: Jeremy Fitzhardinge <jeremy@goop.org>
To: zbigniew brzezinskix <zbigniewbrzezinskix@gmail.com>
Cc: linux-kernel@vger.kernel.org, the arch/x86 maintainers <x86@kernel.org>
Subject: Re: 2.6.28 boot fails on Cyrix 6x86
Date: Sat, 31 Jan 2009 02:48:24 -0800 [thread overview]
Message-ID: <49842C78.8090709@goop.org> (raw)
In-Reply-To: <70438690901132000r4fabc40di959fea6f22ed3a69@mail.gmail.com>
zbigniew brzezinskix wrote:
> Vanilla 2.6.28 boot fails on Cyrix 6x86 ... seems ok on 6x86MX.
>
> tried:
> (X) 386
> (X) 486
> (X) 586/K5/5x86/6x86/6x86MX
>
> cat /proc/cpuinfo
> processor : 0
> vendor_id : CyrixInstead
> cpu family : 5
> model : 2
> model name : 6x86 2x Core/Bus Clock
> stepping : 5
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : yes
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu cyrix_arr ds_cpl est cid
> bogomips : 120.01
>
> BIOS EBDA/lowmem at: 00000000/000a0000
> Linux version 2.6.28 (root@box48) (gcc version 4.3.2 (Debian
> 4.3.2-1.1) ) #1 Tue Jan 13 11:59:16 EST 2009
> KERNEL supported cpus:
> Intel GenuineIntel
> AMD AuthenticAMD
> NSC Geode by NSC
> Cyrix CyrixInstead
> Centaur CentaurHauls
> Transmeta GenuineTMx86
> Transmeta TransmetaCPU
> UMC UMC UMC UMC
> Enabling CPUID on Cyrix processor.
> BIOS-provided physical RAM map:
> BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
> BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
> BIOS-e820: 0000000000100000 - 0000000003000000 (usable)
> BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
> DMI not present or invalid.
> last_pfn = 0x3000 max_arch_pfn = 0x100000
> 48MB LOWMEM available.
> mapped low ram: 0 - 03000000
> low ram: 00000000 - 03000000
> bootmap 00001000 - 00001600
> (6 early reservations) ==> bootmem [0000000000 - 0003000000]
> #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
> #1 [0000100000 - 000036697c] TEXT DATA BSS ==> [0000100000 - 000036697c]
> #2 [0000367000 - 0000369000] INIT_PG_TABLE ==> [0000367000 - 0000369000]
> #3 [000009f000 - 0000100000] BIOS reserved ==> [000009f000 - 0000100000]
> #4 [0000007000 - 0000012000] PGTABLE ==> [0000007000 - 0000012000]
> #5 [0000001000 - 0000002000] BOOTMAP ==> [0000001000 - 0000002000]
> Zone PFN ranges:
> DMA 0x00000000 -> 0x00001000
> Normal 0x00001000 -> 0x00003000
> Movable zone start PFN for each node
> early_node_map[2] active PFN ranges
> 0: 0x00000000 -> 0x000000a0
> 0: 0x00000100 -> 0x00003000
> Allocating PCI resources starting at 10000000 (gap: 3000000:fcff0000)
> Built 1 zonelists in Zone order, mobility grouping on. Total pages: 12096
> Kernel command line: root=/dev/hda1 ro console=tty0 console=ttyS0,115200
> Initializing CPU#0
> PID hash table entries: 256 (order: 8, 1024 bytes)
> Console: colour VGA+ 80x25
> console [tty0] enabled
> console [ttyS0] enabled
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Memory: 45680k/49152k available (1557k kernel code, 3084k reserved,
> 602k data, 184k init, 0k highmem)
> virtual kernel memory layout:
> fixmap : 0xfffed000 - 0xfffff000 ( 72 kB)
> vmalloc : 0xc3800000 - 0xfffeb000 ( 967 MB)
> lowmem : 0xc0000000 - 0xc3000000 ( 48 MB)
> .init : 0xc031e000 - 0xc034c000 ( 184 kB)
> .data : 0xc0285437 - 0xc031be58 ( 602 kB)
> .text : 0xc0100000 - 0xc0285437 (1557 kB)
> Checking if this processor honours the WP bit even in supervisor mode...Ok.
> Calibrating delay loop... 119.55 BogoMIPS (lpj=239104)
> Mount-cache hash table entries: 512
> Enabling CPUID on Cyrix processor.
> Enabling CPUID on Cyrix processor.
> CPU: Cyrix 6x86 2x Core/Bus Clock stepping 05
> Checking 'hlt' instruction... OK.
> invalid opcode: 0000 [#1]
> last sysfs file:
>
> Pid: 0, comm: swapper Not tainted (2.6.28 #1)
> EIP: 0060:[<c03220c6>] EFLAGS: 00010203 CPU: 0
> EIP is at stop_mce+0x0/0x19
> EAX: 00000004 EBX: c03378c8 ECX: c031dfec EDX: 00000034
> ESI: 00099800 EDI: c0316000 EBP: 0078d003 ESP: c031dfe4
> DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
> Process swapper (pid: 0, ti=c031c000 task=c02f7300 task.ti=c031c000)
> Stack:
> c0321865 c03220c4 00000000 c031e829 c03378c8 00000000 00000000
> Call Trace:
> [<c0321865>] alternative_instructions+0xa/0x37
> [<c03220c4>] check_bugs+0xcd/0xcf
> [<c031e829>] start_kernel+0x1da/0x1e2
> Code: 09 f4 f4 f4 f4 68 6c 97 2c c0 e8 32 10 f6 ff a0 40 8a 31 c0 5a
> 3c 06 b2 36 77 03 8d 50 30 88 15 b1 a0 2f c0 e8 97 f7 ff ff 58 c3 <0f>
> 20 e0 83 25 f0 00 35 c0 bf a3 f8 ba 33 c0 0f 20 e0 83 e0 bf
> EIP: [<c03220c6>] stop_mce+0x0/0x19 SS:ESP 0068:c031dfe4
>
Looks like the quick fix is to turn off CONFIG_X86_MCE, but I guess the
right fix is to make sure that stop_mce does nothing on chips which
don't support it, or even have a CR4.
J
prev parent reply other threads:[~2009-01-31 10:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-14 4:00 2.6.28 boot fails on Cyrix 6x86 zbigniew brzezinskix
2009-01-15 6:06 ` Andrew Morton
2009-01-16 3:37 ` zbigniew brzezinskix
2009-01-31 10:48 ` Jeremy Fitzhardinge [this message]
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