Messages in this thread |  | | Date | Mon, 23 Sep 1996 14:24:18 +0200 | From | "Dr. Werner Fink" <> | Subject | Re: Bad news |
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> [ Umm, I guess I should have explicitly stated that you should also run > the copied-down oops through ksymoops with the proper System.map file > for the kernel that oops'es - it's rather hard for me to see what is > actually going on otherwise ]
Ok ... if tested 2.0.20 and 2.0.21 on my i486 at home ... and used ksymoops to extract more information out of the oops. With 2.0.21 there is no oops but a deadlock near the same place where 2.0.20 makes oops. It _seems_ there is a bug within the scsi interface.
Werner
============================================================================== 2.0.20 Oops ------------------------------------------------------------------------------ Unable to handle kernel NULL pointer dereference at vrituall address c0000001 current->txx.cr3=00101000, %cr3=00101000 *pde=00102067 *pte=00000027 Oops: 0000 CPU: 0 EIP: 0010:[<0018d912>] EFLAGS: 00010202 eax: 00000001 ebx: 00000000 ecx: 00092f60 edx: 00092f64 esi: 00000000 edi: 00095808 ebp: 00000000 esp: 00092f24 ds: 0018 es: 0018 fs: 002b gs: 0018 ss:0018 Process swapper (pid: 1, process nr: 1 stackpage=00092000) Stack: 00000000 00000000 00000000 00009000 00092f60 00000000 00092f6e 00000008 0000017d 00092f6c 00000000 0008e000 00001000 00000246 00000000 00000002 00000000 00092f64 00000000 00000000 00090000 0018e2ca 00000000 001bea80 Call Trace: [<0018e2ca>] [<001899b3>] [<00168e81>] [<0012dd68>] [<0010a5b2>] [<0011e4d0>] [<001093aa>] [<001091b4>] [<001091bb>] [<00109360>] Code ff 08 88 d6 e5 00 00 8b b7 f0 00 00 00 43 85 f6 0f 84 54
------------------------------------------------------------------------------ home/werner> ksymoops /System.new < oops Using `/System.new' to map addresses to symbols.
>>EIP: 18d912 <sd_init_onedisk+112/840> Trace: 18e2ca <sd_finish+8a/e0> Trace: 1899b3 <scsi_dev_init+193/1b0> Trace: 168e81 <device_setup+31/40> Trace: 12dd68 <sys_setup+18/50> Trace: 10a5b2 <system_call+52/80> Trace: 11e4d0 <kswapd> Trace: 1093aa <init+4a/260> Trace: 1091b4 <start_kernel+184/1b0> Trace: 1091bb <start_kernel+18b/1b0> Trace: 1093aa <init+4a/260>
============================================================================== 2.0.21 deadlock ------------------------------------------------------------------------------ Started kswapd v 1.4.2.2 scsi-ncr53c7,8xx : at PCI bus 0, device 1, function 0 scsi-ncr53c7,8xx : NCR53c810 at memory 0xfbfef000, io 0xe800, irq 9 scsi0 : burst length 8 scsi0 : NCR code relocated to 0x8600 (virt 0x00008600) scsi0 : test 1 started scsi0 : NCR53c{7,8}xx (rel 17) scsi : 1 host. scsi0 : target 0 accepting period 100ns offset 8 10.00MHz FAST SCSI-II scsi0 : setting target 0 to period 100ns offset 8 10.00MHz FAST SCSI-II Vendor: IBM OEM Model: 0662S12 Rev: 1011 Type: Direct-Access ANSI SCSI revision: 02 Detected scsi disk sda at scsi0, channel 0, id 0, lun 0 scsi0 : target 2 accepting period 204ns offset 8 4.90MHz synchronous SCSI scsi0 : setting target 2 to period 224ns offset 8 4.46MHz synchronous SCSI Vendor: TOSHIBA Model: CD-ROM XM-3701TA Rev: 0236 Type: CD-ROM ANSI SCSI revision: 02 Detected scsi CD-ROM sr0 at scsi0, channel 0, id 2, lun 0 scsi : detected 1 SCSI cdrom 1 SCSI disk total. < nothing goes ... deadlock >
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