2.1.116 still hangs on alpha

Stephen Williams (steve@icarus.com)
Tue, 18 Aug 1998 22:23:13 -0700


My alpha's been getting hanging since around 2.1.111, so I was very
enthusiastic to try 2.1.116. I upgraded to 2.1.115, and on to 116, using
patches, but I'm pretty sure things are OK.

It seems highly likely that the problem is with X, or the display. My
machine boots up to xdm, so what I did was switch to a VC after it
boots up and displays the xdm login screen. I was able to log in and
do lots of stuff, disk I/O, networking, etc. while X was started but
inactive. (The X server is there, but I'm not touching it.)

I switch back to the X display VC7 and I can hang it in less then 30 seconds.
The hang seems to be triggered by non-X activity (network or disk) but
requires that X be in use, at least a little bit.

It hangs completely. No keyboard, no Alt-SysRq, no network. Locked tight.

The boot of 2.1.116 survives what seems like 15minutes of fsck activity,
and starts the lot of networking demons, including nfs, bootp, dhcp,
etc. It (and 2.1.115) have only ever hung when I'm using X, and it hangs
quickly at that.

icarus.com % rpm -q XFree86-S3
XFree86-S3-3.3.2-13

>From my .config (I used ``make xconfig''):
#
# Console drivers
#
CONFIG_VGA_CONSOLE=y
# CONFIG_FB is not set

egcs-19980816 (to compile the kernel)
Linux 2.1.116
alpha PC164
VGA compatible controller: S3 Inc. Vision 968 (2Meg)
64Meg of main memory

Although I haven't yet tried compiled the kernel with gcc-2.7.2.3 (I plan
to, as soon as I get the patches needed to configure for linux/alpha)
I don't have the feeling that egcs is the problem.

Any more suggestions for tests? I'm game. (When Linux 2.2 and egcs 1.1
are released, I want them to work on my machine!)

-- 
Steve Williams                "The woods are lovely, dark and deep.
steve@icarus.com              But I have promises to keep,
steve@picturel.com            and lines to code before I sleep,
http://www.picturel.com       And lines to code before I sleep."

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