realiable crashing with AIC7xxxx driver and vanilla 2.4.6 kernel on

Janne Pänkälä (epankala@cc.hut.fi)
Fri, 20 Jul 2001 17:25:40 +0300 (EET DST)

** Summary **
aic7xxx driver reliably crashes to(/in?) ahc_handle_seqint() function.

** Explanations **
I updated my motherboard from MVP3 chipset to KT133A (Asus KT7A) board and
now I'm getting Oopses like no tomorrow.

when ever I do something that uses scsi disk more than just a bit it will
crash.

lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03)
00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
00:09.0 SCSI storage controller: Adaptec AHA-294x / AIC-7871 (rev 03)

--- /proc/interrupts ---
CPU0
0: 150666 XT-PIC timer
1: 4645 XT-PIC keyboard
2: 0 XT-PIC cascade
3: 224 XT-PIC serial
5: 12736 XT-PIC usb-uhci, usb-uhci
7: 33581 XT-PIC aic7xxx
9: 0 XT-PIC acpi
10: 20848 XT-PIC eth0
12: 0 XT-PIC EMU10K1
14: 6 XT-PIC ide0
15: 54 XT-PIC ide1
NMI: 0
ERR: 23
MIS: 0

---


what I always seem to get is following (I have kdb patch)


--- CRASH 1 ---
Recovery SCB completes
Recovery code awake
aic7xxx_abort returns 8194
Unable to handle kernel NULL pointer dereference at virtual address 00000173
 printing eip:
c01cb819
*pde = 00000000


Entering kdb (current=0xc031c000, pid 0) Oops: Oops
due to oops @ 0xc01cb819
eax = 0xc1355c00 ebx = 0xc1254000 ecx = 0xc1254000 edx = 0x00000173
esi = 0xc1258210 edi = 0xc127de00 esp = 0xc031dee0 eip = 0xc01cb819
ebp = 0xc031df2c xss = 0x00000018 xcs = 0x00000010 eflags = 0x00010006
xds = 0x00000018 xes = 0x00000018 origeax = 0xffffffff &regs = 0xc031deac
kdb> bt
    EBP       EIP         Function(args)
0xc031df2c 0xc01cb819 ahc_handle_seqint+0x2c9 (0xc127de00, 0x71)
                               kernel .text 0xc0100000 0xc01cb550 0xc01cc4b0
0xc031df54 0xc01c835f ahc_linux_isr+0x17f (0xb, 0xc127de00, 0xc031dfa0, 0x2c0)
                               kernel .text 0xc0100000 0xc01c81e0 0xc01c8440
0xc031df74 0xc01084a0 handle_IRQ_event+0x30 (0xb, 0xc031dfa0, 0xc125d380, 0xc0105190, 0xc031c000)
                               kernel .text 0xc0100000 0xc0108470 0xc01084d0
0xc031df98 0xc0108632 do_IRQ+0x72
                               kernel .text 0xc0100000 0xc01085c0 0xc0108670
0xc031dfe8 0xc0105232 cpu_idle+0x42
                               kernel .text 0xc0100000 0xc01051f0 0xc0105250
kdb>


--- CRASH 2 ---
(scsi0:A:0:0): Unexpected busfree in Message-out phase
SEQADDR == 0x159
Unable to handle kernel NULL pointer dereference at virtual address 00000173
 printing eip:
c01cb819
*pde = 00000000


Entering kdb (current=0xc031c000, pid 0) Oops: Oops
due to oops @ 0xc01cb819
eax = 0xc125c000 ebx = 0xc1254000 ecx = 0xc1254000 edx = 0x00000173
esi = 0xc1258000 edi = 0xc127de00 esp = 0xc031dee0 eip = 0xc01cb819
ebp = 0xc031df2c xss = 0x00000018 xcs = 0x00000010 eflags = 0x00010006
xds = 0x00000018 xes = 0x00000018 origeax = 0xffffffff &regs = 0xc031deac
kdb> bt
    EBP       EIP         Function(args)
0xc031df2c 0xc01cb819 ahc_handle_seqint+0x2c9 (0xc127de00, 0x71)
                               kernel .text 0xc0100000 0xc01cb550 0xc01cc4b0
0xc031df54 0xc01c835f ahc_linux_isr+0x17f (0x7, 0xc127de00, 0xc031dfa0, 0x1c0)
                               kernel .text 0xc0100000 0xc01c81e0 0xc01c8440
0xc031df74 0xc01084a0 handle_IRQ_event+0x30 (0x7, 0xc031dfa0, 0xc125d380, 0xc0105190, 0xc031c000)
                               kernel .text 0xc0100000 0xc0108470 0xc01084d0
0xc031df98 0xc0108632 do_IRQ+0x72
                               kernel .text 0xc0100000 0xc01085c0 0xc0108670
0xc031dfe8 0xc0105232 cpu_idle+0x42
                               kernel .text 0xc0100000 0xc01051f0 0xc0105250
kdb>
-------------


--- /usr/src/linux/.config ---
CONFIG_MK7=y
CONFIG_X86_GOOD_APIC=y
# CONFIG_SMP is not set
CONFIG_X86_UP_IOAPIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_CMDS_PER_DEVICE=8
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_BUILD_FIRMWARE=y

---


AIC7xxx on KT chipset. However seems that others have gotten it solved.


Any suggestions are more than welcome and I'll gladly provide any help I
can.



-- 
Janne
echo peufiuhu@tt.lac.nk | tr acefhiklnptu utpnlkihfeca


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