2.1.93 possessed by Satan (APM bugs!)

C. Scott Ananian (cananian@lcs.mit.edu)
Wed, 8 Apr 1998 09:50:58 -0400 (EDT)


On Wed, 8 Apr 1998 "Garst R. Reese" <reese@isn.net> wrote:

> In the Netscape app-defaults, there is an item "saveHistoryInterval"
> which is set at 600 seconds. If this interval times out before my LT
> goes into suspend, it brings it out of screen blanking mode. (switched
> to a non-X vt). I tested this by changing the value from 600 to 1600
> seconds, restarting Netscape and switching to a regular vt.
> My suspend time set to 20min, so it suspended before Netscape could get
> to it, but of course this won't work all of time because they are not in
> sync.

2.1.93 dies for me sometime during boot: can't tell exactly when because
my APM screen blanking kicks in and 2.1.93 won't wake it up again.

The 2.1.93 bugs are actually very *good* things in my book: there have
been random inconsistencies with APM on a variety of different machines;
hopefully now that the bug is fully exposed we'll be able to track it
down.

The APM bugs are NOT due to the 2.8.0 compiler thing: early-clobbers and
what-have-you are a completely different thing. I'm still using 2.7.2.X
and APM goes belly up for me in 2.1.93. [I should double-check this,
though--there's the possibility that even 2.7.2.x is compiling the code
wrong].

The 'saveHistoryInterval' thing above seems to trigger a disk access,
which you're saying can bring the machine out of the APM funk. disk
access==interrupt, maybe? I'll look into it.
--Scott
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