Help! Altos 5.3.1 fork is failing!
Brandon S. Allbery
allbery at NCoast.ORG
Fri Oct 20 12:03:09 AEST 1989
As quoted from <506 at oglvee.UUCP> by jr at oglvee.UUCP (Jim Rosenberg):
+---------------
| We just recently "upgraded" [sic] an Altos 2000 from Xenix 5.2c to UNIX 5.3d.
| per-user limit is 30, and we're getting fork failures where that's not exceeded
| either. The system error reporting is filled with messages like this:
+---------------
Ah, so someone else *is* getting those little buggers.
As far as I can tell, "fork failed"s happen when memory is mostly full and
something wants to fork and for some stupid reason Altos 5.3[a-d][DT][0-9]
doesn't want to page anything out to make more room in core even though it can
do so. I have some "sar" output that corroborates this, "fork failed" happens
when a process tries to fork and there are < 100 free 512-byte (I think that's
the units sar uses, I need to check) chunks of memory.
I plan to ram this down Altos T/S's collective throat, since they haven't
fixed it in 5.3dT1 and I reported it in 5.3bT1 (3 upgrades have gone by so
far...).
++Brandon, for this message speaking as the tech guru of telotech, inc.
--
Brandon S. Allbery, moderator of comp.sources.misc allbery at NCoast.ORG
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