diff options
| author | Greg Kurz <groug@kaod.org> | 2018-01-18 11:41:03 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-02-05 13:54:39 +0100 |
| commit | 4183e2ea6d092ea9d7f18af085cb1076fae08512 (patch) | |
| tree | 82bb2e98bdf99acff21da2dde27b7c54b080f272 | |
| parent | 4e4b57342e14f260ca6e2d4cfcbafb876d227909 (diff) | |
readline: don't free completions in readline_free()
Since commit e5dc1a6c6c43, QEMU aborts on exit if completion was used
in the monitor:
*** Error in `obj/ppc64-softmmu/qemu-system-ppc64': double free or
corruption (fasttop): 0x00000100331069d0 ***
/home/greg/Work/qemu/qemu-spapr/util/readline.c:514
/home/greg/Work/qemu/qemu-spapr/monitor.c:586
/home/greg/Work/qemu/qemu-spapr/monitor.c:4125
argv=<optimized out>, envp=<optimized out>) at
/home/greg/Work/qemu/qemu-spapr/vl.c:4795
Completion strings are not persistent accross completions (why would
they?). They are allocated under readline_completion(), which already
takes care of freeing them before returning.
Maybe all completion related bits should be moved out of ReadLineState
to a dedicated structure ?
In the meantime, let's drop the offending lines from readline_free()
to fix the crash.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <151627206353.4505.4602428849861610759.stgit@bahia.lan>
Fixes: e5dc1a6c6c43
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | util/readline.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/util/readline.c b/util/readline.c index 24ec839854..ec91ee0fea 100644 --- a/util/readline.c +++ b/util/readline.c @@ -510,9 +510,6 @@ void readline_free(ReadLineState *rs) for (i = 0; i < READLINE_MAX_CMDS; i++) { g_free(rs->history[i]); } - for (i = 0; i < READLINE_MAX_COMPLETIONS; i++) { - g_free(rs->completions[i]); - } g_free(rs); } |