On Fri, 2005-10-14 at 00:47 -0400, Sergey A. Lipnevich
wrote:> Hi All,
>
> I have Dovecot 1.0 Alpha3 running on x86_64 Linux 2.6 multi-CPU box
> using Maildir folders. Moving messages from one folder to another in
> Thunderbird 1.0.7, regardless of their size (usually small), produced
> error 83, "Out of memory", when both of these parameters were
unset
> (default): mail_read_mmaped, mmap_disable. The log line before the error
> was pool_system_malloc(): Out of memory.
This is a bug in Dovecot. It looks like it happens only with 64bit
systems. Would you mind getting a gdb backtrace from that, it would help
in fixing it? Works basically like:
- Open the mailbox in thunderbird
- gdb attach pid-of-the-imap-process-that's-going-to-move-the-messages
- Give "cont" command
- Move the messages and wait for crash
- Give "bt" command
- mail the reply to me
> I initially changed mmap_disable to "yes", the error stopped, but
it
> still wasn't moving messages reliably. I then set MM parameters more
> aggressively: mail_read_mmaped = yes, mmap_disable = no (and the third
> of the series, mmap_no_write, is left unset). The error stopped popping
> up, and the moving works speedily.
> Maybe the default for mail_read_mmaped should be "yes?"
That probably just goes around the buggy code path..
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part
Url :
http://dovecot.org/pipermail/dovecot/attachments/20051016/2e899e8a/attachment.pgp