On Tue, 25 Jul 2000, Chipzz wrote:
> From: Chipzz <chipzz@ULYSSIS.Org>
> Subject: less locking up console
>
> I have a reproducable way of locking up my whole machine: run less, go to
> the end of the file and keep the up arrow pressed down. This will eventual-
> ly lock up the whole machine. I allready mailed the writer of less, but I
> think it is a kernel problem. (It only happens when scroling up, not when
> scrolling down. Also repeatidly pressing up causes no problem, just holding
> it down)
>
> I forgot my .config at home, but it hapens with stock redhat 6.2 kernel,
> (2.2.14), with 2.2.14 without patches, and with 2.2.16 without patches. I
> think 2.2.10 was stable (without PCI built in), but I didn't stress-test
> it yet.
>
> Configuration is a pentium 166 with PCI, video-card is an S3 Trio 64 V+
> (PCI). The box gets totally locked up, no alt-sysrq, no console switching.
> The only way to get out is hitting the reset button.
>
> This doesn't happen on my 486 running 2.2.10.
>
> I suspect it is a timing problem of some kind, but I'm not certain.
>
> For more information, mail me in private, since I'm not on the list (tempo-
> rarily redirecting all kernel-traffic to /dev/null due to holidays, quota
> and no internet access at home).
>
> Chipzz AKA
> Jan Van Buggenhout
OK some additional information if anyone cares:
Vesa frame buffer is compiled in but not used, I use VGA @ 80x60 (which
locks up less frequently than 80x25). Also, at 100 Mhz it locks up less than
at 166 Mhz (no, it is not overclocked).
The config file used is attached.
Proc info:
processor : 0
vendor_id : GenuineIntel
cpu family : 5
model : 2
model name : Pentium 75 - 200
stepping : 12
cpu MHz : 167.046
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : yes
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8
bogomips : 333.41
CPU0
0: 53634 XT-PIC timer
1: 1183 XT-PIC keyboard
2: 0 XT-PIC cascade
5: 0 XT-PIC soundblaster
8: 1 XT-PIC rtc
9: 1341 XT-PIC aha152x
11: 0 XT-PIC eth0
12: 0 XT-PIC PS/2 Mouse
13: 1 XT-PIC fpu
14: 53514 XT-PIC ide0
15: 1937 XT-PIC ide1
NMI: 0
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0140-015f : aha152x
0170-0177 : ide1
01f0-01f7 : ide0
0220-022f : soundblaster
02f8-02ff : serial(auto)
0376-0376 : ide1
0388-038b : Yamaha OPL3
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
6000-601f : eth0
9000-9007 : ide0
9008-900f : ide1
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Intel 82437VX Triton II (rev 2).
Medium devsel. Master Capable. Latency=32.
Bus 0, device 7, function 0:
ISA bridge: Intel 82371SB PIIX3 ISA (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 0, device 7, function 1:
IDE interface: Intel 82371SB PIIX3 IDE (rev 0).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32.
I/O at 0x9000 [0x9001].
Bus 0, device 18, function 0:
Ethernet controller: Realtek 8029 (rev 0).
Medium devsel. IRQ 11.
I/O at 0x6000 [0x6001].
Bus 0, device 20, function 0:
VGA compatible controller: S3 Inc. Trio32/Trio64 (rev 84).
Medium devsel. IRQ 11.
Non-prefetchable 32 bit memory at 0xe0000000 [0xe0000000].
BTW, any information on where to start digging would be appreciated.
Chipzz AKA
Jan Van Buggenhout
---------------------------------------------------------------------------- UNIX isn't dead - It just smells funny Chipzz@ULYSSIS.Org --------------------------------------------------------------------------
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