Summary

out-of-memory sometimes causes infinite loop

Metadata

• Id: ef5195b2673b9e7602185b68faea548bf9cee133
• Trac id: 1257
• Type: defect
• Reporter: kristianlm
• Owner:
• Cc:
• Status: closed
• Component: unknown
• Estimated difficulty: hard
• Resolution: fixed
• Priority: major
• Milestone: 5.0
• Version: 4.10.x
• Changetime: 2017-03-12 23:52:26 UTC
• Created: 2016-02-05 13:17:18 UTC
• Keywords:

Attachments

• ef5195b2673b9e7602185b68faea548bf9cee133/attachments/gc.patch

Description

Following the "discussion" on http://paste.call-cc.org/paste?id=efbe6a448b152968694221b82b299181f28925a3#a12 we see that, sometimes, running

$ csi -s oom.scm -:hm8M -:g 2>&1 | grep resize [[GC]|] resized heap to 3145728 bytes [[GC]|] resized heap to 6291456 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes [[GC]|] resized heap to 8388608 bytes ...

triggers an infine heap-resize loop

with oog.scm being

(define state '())

(let loop ()

 (set! state (alist-update (random 10000) (make-string 1000) state))
 (loop))

this has been reproduced on 4.10.1 a 4.10.0

Changes and comments

[2016-08-25 20:29:47 UTC] sjamaan set difficulty to hard

[2017-03-03 16:55:39 UTC] LemonBoy attached gc.patch (description=#f)

[2017-03-03 17:00:40 UTC] LemonBoy changed milestone from someday to 5.0

[2017-03-12 23:52:26 UTC] evhan changed status from new to closed

[2017-03-12 23:52:26 UTC] evhan set resolution to fixed

[2017-03-12 23:52:26 UTC] evhan wrote:

Fixed by 31d154d and a75a11e.