#2716: ghci uses an enormous amount of memory (recent 6.10 snapshots)
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Reporter: ravi | Owner:
Type: bug | Status: new
Priority: high | Milestone: 6.10.1
Component: GHCi | Version: 6.10.1
Severity: critical | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: x86_64 (amd64)
Os: Linux |
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Comment (by igloo):
Someone else had this problem, but upgrading libedit fixed it. We think
(but haven't verified) that this Debian patch is what fixes the problem:
{{{
06-fgetln.c-error.diff by Ben Burton <[EMAIL PROTECTED]>
Routine fgetln() was behaving incorrectly on error (such as when
EOF was reached), which in turn caused infinite memory consumption
during read_history().
--- a/glibc-bsd-glue/fgetln.c
+++ a/glibc-bsd-glue/fgetln.c
@@ -5,9 +5,10 @@
{
char *line=NULL;
- getline (&line, len, stream);
-
- (*len)--; /* get rid of the trailing \0, fgetln
- does not have it */
- return line;
+ if (getline (&line, len, stream) >= 0) {
+ (*len)--; /* get rid of the trailing \0, fgetln
+ does not have it */
+ return line;
+ } else
+ return NULL;
}
}}}
Can someone take a look to see if Gentoo's libedit looks buggy please?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2716#comment:4>
GHC <http://www.haskell.org/ghc/>
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