[parisc-linux] Re: [parisc-linux-cvs] linux-2.6 tausq

[Kyle McMartin]

On Mon, Apr 26, 2004 at 01:03:05PM -0600, Randolph Chung wrote:
> Log message:
> 2.6.6-rc1-pa4
> disable prefetchw for !pa20
> 

Oddly, this dies on boot on my B180.

The contents of IIR is the prefetch instruction (ldw 0(%r19), %r0).

Stack Dump:
 10410a18:  10410a18 00000057 00000056 00000055 
 10410a08:  00000054 00000053 00000052 00000051 
 104109f8:  00000050 0000004f 0000004e 0000004d 
 104109e8:  0000004c 0000004b 0000004a 00000049 
 104109d8:  00000048 00000047 00000046 00000000 
 104109c8:  10410680 0000001a 00000000 00000041 
 104109b8:  00000040 0000003f 0000003e 10106d1c 
 104109a8:  0000003c 0000003b 0000003a 00000039 
 10410998:  00000038 00000037 00000036 00000035 
 10410988:  00000034 00000033 00000032 00000031 
 10410978:  00000030 0000002f 0000002e 0000002d 
 10410968:  0000002c 0000002b 0000002a 00000029 
 10410958:  00000028 29fef004 29ff5870 1087a6f0 
 10410948:  10410508 00000023 00000022 00000021 
 10410938:  00000020 0000001f 0000001e 0000001d 
 10410928:  0000001c 0000001b 0000001a 00000019 
 10410918:  00000018 00000017 00000016 00000015 
 10410908:  00000014 00000013 00000012 00000011 
 104108f8:  00000010 0000000f 0000000e 0000000d 
 104108e8:  0000000c 0000000b 0000000a 00000009 
 104108d8:  00000008 00000007 00000006 0000001d 
 104108c8:  0000001c 0000001b 0000001a 00000019 
 104108b8:  00000018 00000017 00000016 1010c088 
 104108a8:  00000014 00000013 00000012 00000011 
 10410898:  00000010 0000000f 0000000e 0000000d 
 10410888:  0000000c 0000000b 0000000a 00000009 
 10410878:  00000008 00000007 00000006 00000005 
 10410868:  00000004 00000003 00000002 00000001 
 10410858:  00000000 00000000 00000000 00000000 
 10410848:  0e601080 00000010 00000000 00000000 
 10410838:  00000000 00000000 00000000 10176cb0 
 10410828:  10176cac 00000000 00000000 00000000 
 10410818:  00000000 00000000 00000000 00000000 
 10410808:  00000000 00000000 00000000 00000000 
 104107f8:  41000000 00000000 40800000 00000000 
 104107e8:  40000000 00000000 40000000 7fffffff 
 104107d8:  41800000 00000000 40200000 00000000 
 104107c8:  40200000 00000000 40300000 00000000 
 104107b8:  41000000 00000000 40800000 7fffffff 
 104107a8:  7fffffff 00000000 41000000 7fffffff 
 10410798:  7fffffff 00000800 00000400 00000200 
 10410788:  00000100 00000080 00000040 00000000 
 10410778:  00000000 00000010 00000010 00000000 
 10410768:  41800000 25b7ea20 45e69c6a 00000000 
 10410758:  00000000 e0000000 43ebebeb ffffffff 
 10410748:  7f7fffff 00000020 00000010 00000000 
 10410738:  00000000 00000000 00000000 00000000 
 10410728:  00000000 00000000 00000000 00000000 
 10410718:  0000001f 00000000 0000001f 00000000 
 10410708:  0000001f 00000000 000f0800 1016cad8 
 104106f8:  10410680 18701a80 00000000 103b6010 
 104106e8:  29ff5940 10410510 10410508 00001000 
 104106d8:  00000000 0000ffff 10840000 00000000 
 104106c8:  19ffffe0 f0000194 1037df04 1049b010 
 104106b8:  1043a810 1043a810 00000000 29fef001 
 104106a8:  00000003 29ff5940 10410510 0023ee05 
 10410698:  10410508 1087a6f0 29ff5870 29fef004 
 10410688:  1016c08c 104af010 0004ff0f 00000009 
 10410678:  00000009 00000009 00000009 10142d98 
 10410668:  00000009 00000009 00000009 00000009 
 10410658:  00000009 29ff0680 29ffb340 00000000 
 10410648:  29fef000 000000d0 29ff6ce0 00000009 
 10410638:  00000009 00000009 00000009 101778bc 
 10410628:  00000009 29fef004 10410408 29ff84a0 

Kernel addresses on the stack:
 [<10106a68>] parisc_terminate+0x60/0xb4
 [<10106d1c>] handle_interruption+0x260/0x560
 [<1010c088>] intr_check_sig+0x0/0xc
 [<10176cb0>] __d_lookup+0x88/0x174
 [<10142d98>] __get_free_pages+0x28/0x5c
 [<101778bc>] alloc_inode+0x28/0x184
 [<1016c08c>] do_lookup+0x30/0xc8
 [<101b3604>] ramfs_get_inode+0x1c/0x13c
 [<1016c6b0>] link_path_walk+0x58c/0xa08
 [<1016ce34>] path_lookup+0xc0/0x200
 [<1016d154>] __user_walk+0x5c/0x78
 [<1015c6d0>] sys_chown+0x28/0x70
 [<1041f17c>] do_name+0xf0/0x180
 [<1041f414>] write_buffer+0x4c/0x74
 [<1041f48c>] flush_buffer+0x50/0xa4
 [<1041f524>] flush_window+0x3c/0xa8
 [<10104438>] inflate+0xa0/0xcc
 [<10147290>] do_tune_cpucache+0x10c/0x17c
 [<10104838>] gunzip+0x338/0x57c
 [<1041e898>] malloc+0x10/0x1c
 [<1041f7a0>] unpack_to_rootfs+0x210/0x284
 [<1041f840>] populate_rootfs+0x2c/0x4c
 [<1041d344>] start_kernel+0x198/0x1f0

Kernel Fault: Code=26 regs=10410680 (Addr=00000000)

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111 Not tainted
r00-03  00000000 104af010 1016c08c 29fef004
r04-07  29ff5870 1087a6f0 10410508 0023ee05
r08-11  10410510 29ff5940 00000003 29fef001
r12-15  00000000 1043a810 1043a810 1049b010
r16-19  1037df04 f0000194 19ffffe0 00000000
r20-23  10840000 0000ffff 00000000 00001000
r24-27  10410508 10410510 29ff5940 103b6010
r28-31  00000000 18701a80 10410680 1016cad8
sr0-3   00000000 00000000 00000000 00000000
sr4-7   00000000 00000000 00000000 00000000

IASQ: 00000000 00000000 IAOQ: 10176cac 10176cb0
 IIR: 0e601080    ISR: 00000000  IOR: 00000000
 CPU:        0   CR30: 10410000 CR31: 10414000
 ORIG_R28: 00000000
 IAOQ[0]: __d_lookup+0x84/0x174
 IAOQ[1]: __d_lookup+0x88/0x174
 RP(r2): do_lookup+0x30/0xc8

Regards,
-- 
Kyle McMartin