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- Subject: nfree patch (memory fragmentation...)
- Date: Thu, 19 Aug 93 23:23:22 CES
- From: Juergen Lock <nox@jelal.north.de>
- Message-Id: <9308192123.AA00114@jelal.north.de>
-
- i just had it again, some memory chunk left in the middle of nowhere...
- looked again at the 1.09 diffs, hit ctrl-shift-alt-f5:
-
- pid 4 (ksh): Arena at 1122A4 size 6000: free list:
- pid 4 (ksh): 112DC4 size 0
- pid 4 (ksh): 112E18 size 0
- pid 4 (ksh): 1133CA size 4
- pid 4 (ksh): 113468 size 8
- ...
- pid 4 (ksh): Arena at 1AC988 size 4000: free list:
- pid 4 (ksh): 1AC994 size 3FEC
-
- strange, a 4000 long area with 3fec free... here's a patch :-)
-
- --- nalloc2.c_ Tue Aug 17 18:36:30 1993
- +++ nalloc2.c Thu Aug 19 21:46:12 1993
- @@ -239,7 +239,8 @@
-
- /* if, after coalescing, this arena is entirely free, Mfree it! */
- if ((struct arena *)a->a_ffirst == a+1 &&
- - (a->a_ffirst->b_size + sizeof(struct block)) == a->a_size) {
- + (a->a_ffirst->b_size + sizeof(struct block) + sizeof(struct arena))
- + == a->a_size && a != a_first) {
- NALLOC_DEBUG('!');
- *qa = a->a_next;
- #if 1
-
- btw i later also found what looked like kmalloc'd pathnames of
- nonexisting files that the shell must have searched earlier... is
- it tosfs that keeps them? why? :-)
-
- cheers
- Juergen
- --
- J"urgen Lock / nox@jelal.north.de / UUCP: ..!uunet!unido!uniol!jelal!nox
- ...ohne Gewehr
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-