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Subject[2.5.54] Oops IDE-SCSI and failure AIC7xxx
Date
Hello,

Here is the copy of a boot sequence using kernel 2.5.54 :
aic7xxx: PCI Device 0:8:0 failed memory mapped test. Using PIO.
scsi0: PCI error Interrupt at seqaddr = 0x3
scsi0: Signaled a Target Abort
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.25
<Adaptec 2940 Ultra2 SCSI adapter>
aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs

(scsi0:A:0): 40.000MB/s transfers (20.000MHz, offset 127, 16bit)
Vendor: FUJITSU Model: MAN3367MP Rev: 5507
Type: Direct-Access ANSI SCSI revision: 03
scsi0:A:0:0: Tagged Queuing enabled. Depth 64
scsi1 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: TDK Model: CDRW4800B Rev: S7S3
Type: CD-ROM ANSI SCSI revision: 02
ide-scsi: abort called for 21
Unable to handle kernel NULL pointer dereference at virtual address
00000030
printing eip:
c030802c
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0060:[<c030802c>] Not tainted
EFLAGS: 00010082
Unable to handle kernel paging request at virtual address ffffff8d
printing eip:
c012ecc7
*pde = 00001067
*pte = 00000000
Oops: 0002
CPU: 0
EIP: 0060:[<c012ecc7>] Not tainted
EFLAGS: 00010006
Out of this, two problems :
- AIC7xxx fails to use DMA, with :
aic7xxx: PCI Device 0:8:0 failed memory mapped test. Using PIO.
scsi0: PCI error Interrupt at seqaddr = 0x3
scsi0: Signaled a Target Abort

- IDE scsi oops at boot.
7 [12:01] rol@donald:~> ksymoops -v /usr/src/linux/vmlinux -m
/boot/System.map-2.5.54 -K < oops-idescsi2
ksymoops 2.4.8 on i686 2.4.20. Options used
-v /usr/src/linux/vmlinux (specified)
-K (specified)
-l /proc/modules (default)
-o /lib/modules/2.4.20/ (default)
-m /boot/System.map-2.5.54 (specified)

No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Unable to handle kernel NULL pointer dereference at virtual address
00000030
c030802c
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0060:[<c030802c>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010082
Warning (Oops_read): Code line not seen, dumping what data is available

>>EIP; c030802c <idescsi_abort+74/108> <=====


1 warning issued. Results may not be reliable.

Regards,
Paul Rolland, rol@as2917.net

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