Cyrus IMAPd 2.2.7 Released

Ken Murchison ken at oceana.com
Thu Jul 29 08:34:41 EDT 2004 

Simon Matter wrote:

>>>Simon Matter wrote:
>>>
>>>
>>>>>Simon Matter wrote:
>>>>>
>>>>>
>>>>>>How again do I get them?
>>>>>
>>>>>Does the cyrus user have write access to whatever directory you started
>>>>>master in?  You may also find cores in user mailbox directories.
>>>>
>>>>
>>>>Thanks, I didn't cd to /var/lib/imap. The next rpm will have a core
>>>>dump
>>>>mode :)
>>>>
>>>
>>>This looks like the mailbox header is corrupt.  Are you sure that this
>>>only fails with 2.2.7 and not 2.2.6?  I'd also be interested if you see
>>>the same results from a stock (unpatched) 2.2.7.
>>
>>Okay, this one is from stock, unpatched 2.2.7 lmtpd:
> 
> 
> Another, different one, I'm wondering whether process_recipient() is
> correct here, why is the recipient "<dewinala" but the account is just
> "dewinala":

No, that's fine, the leading '<' gets stripped.

I think Rob is right in that the heap is getting corrupted.  If you're 
running on a Linux box (which I'm sure you are), can you:

stop master
export MALLOC_CHECK_=2
ulimit -c unlimited
start master


This will cause malloc/free to abort as soon as something bad happens. 
This is the only way that I have been able to detect such problems in 
the past, as the crashes typically happen randomly after the corruption.

Once you get a core, send the backtrace and hopefully is will point out 
the problem.  The more backtraces the better.

> 
> (gdb) bt
> #0  0x4207a35a in chunk_alloc () from /lib/i686/libc.so.6
> #1  0x4207a158 in malloc () from /lib/i686/libc.so.6
> #2  0x0809172f in xmalloc (size=9) at xmalloc.c:56
> #3  0x08091836 in xstrdup (str=0x814a249 "dewinala") at xmalloc.c:91
> #4  0x08050824 in process_recipient (addr=0x814a248 "<dewinala",
> namespace=0x81203e0, ignorequota=0, verify_user=0x804ec30 <verify_user>,
> msg=0x8134ed8)
>     at lmtpengine.c:879
> #5  0x08051da6 in lmtpmode (func=0x811bbc0, pin=0x8135268, pout=0x81352d8,
> fd=0) at lmtpengine.c:1527
> #6  0x0804e250 in service_main (argc=1, argv=0x812adb0, envp=0xbfffee7c)
> at lmtpd.c:230
> #7  0x0804dfd9 in main (argc=1, argv=0xbfffee74, envp=0xbfffee7c) at
> service.c:557
> #8  0x42017589 in __libc_start_main () from /lib/i686/libc.so.6
> 
> 
> 
>>(gdb) bt
>>#0  0x4207a351 in chunk_alloc () from /lib/i686/libc.so.6
>>#1  0x4207a158 in malloc () from /lib/i686/libc.so.6
>>#2  0x0809172f in xmalloc (size=9) at xmalloc.c:56
>>#3  0x08091870 in xstrndup (str=0x4001a092 <Address 0x4001a092 out of
>>bounds>, len=8) at xmalloc.c:98
>>#4  0x08059f3b in mailbox_read_header (mailbox=0xbfffb900) at
>>mailbox.c:652
>>#5  0x08059856 in mailbox_open_header_path (name=0xbfffbc00
>>"user.schwemar", path=0x8121580 "/var/spool/imap/s/user/schwemar",
>>    acl=0x813e9d8 "schwemar\tlrswipcda\t", auth_state=0x0,
>>mailbox=0xbfffb900, suppresslog=0) at mailbox.c:444
>>#6  0x080596d8 in mailbox_open_header (name=0xbfffbc00 "user.schwemar",
>>auth_state=0x0, mailbox=0xbfffb900) at mailbox.c:390
>>#7  0x08056efa in append_check (name=0xbfffbc00 "user.schwemar", format=0,
>>auth_state=0x0, aclcheck=0, quotacheck=0) at append.c:118
>>#8  0x0804edf2 in verify_user (user=0x8146d40 "schwemar", domain=0x0,
>>mailbox=0x0, quotacheck=0, authstate=0x0) at lmtpd.c:549
>>#9  0x08050902 in process_recipient (addr=0x814a0f0 "<schwemar",
>>namespace=0x81203e0, ignorequota=0, verify_user=0x804ec30 <verify_user>,
>>msg=0x8134ed8)
>>    at lmtpengine.c:900
>>#10 0x08051da6 in lmtpmode (func=0x811bbc0, pin=0x8135268, pout=0x81352d8,
>>fd=0) at lmtpengine.c:1527
>>#11 0x0804e250 in service_main (argc=1, argv=0x812adb0, envp=0xbffff77c)
>>at lmtpd.c:230
>>#12 0x0804dfd9 in main (argc=1, argv=0xbffff774, envp=0xbffff77c) at
>>service.c:557
>>#13 0x42017589 in __libc_start_main () from /lib/i686/libc.so.6
>>
>>
>>
>>
>>>
>>>>Here we go:
>>>>(gdb) bt
>>>>#0  0x4207a351 in chunk_alloc () from /lib/i686/libc.so.6
>>>>#1  0x4207a158 in malloc () from /lib/i686/libc.so.6
>>>>#2  0x08092a5f in xmalloc (size=9) at xmalloc.c:56
>>>>#3  0x08092ba0 in xstrndup (str=0x4001a092 <Address 0x4001a092 out of
>>>>bounds>, len=8) at xmalloc.c:98
>>>>#4  0x0805a60b in mailbox_read_header (mailbox=0xbfff9f00) at
>>>>mailbox.c:652
>>>>#5  0x08059f26 in mailbox_open_header_path (name=0xbfffa210
>>>>"user.hauserol", path=0x8122ec0 "/var/spool/imap/h/user/hauserol",
>>>>    acl=0x8140300 "hauserol\tlrswipcda\t", auth_state=0x0,
>>>>mailbox=0xbfff9f00, suppresslog=0) at mailbox.c:444
>>>>#6  0x08059da8 in mailbox_open_header (name=0xbfffa210 "user.hauserol",
>>>>auth_state=0x0, mailbox=0xbfff9f00) at mailbox.c:390
>>>>#7  0x080575ca in append_check (name=0xbfffa210 "user.hauserol",
>>>>format=0,
>>>>auth_state=0x0, aclcheck=0, quotacheck=0) at append.c:118
>>>>#8  0x0804ef06 in verify_user (user=0x8151298 "hauserol", domain=0x0,
>>>>mailbox=0x0, quotacheck=3226, authstate=0x0) at lmtpd.c:593
>>>>#9  0x08050b02 in process_recipient (addr=0x8151520 "<hauserol",
>>>>namespace=0x8121d20, ignorequota=0, verify_user=0x804ed10
>>>><verify_user>,
>>>>msg=0x8136808)
>>>>    at lmtpengine.c:900
>>>>#10 0x08051fa6 in lmtpmode (func=0x811d340, pin=0x8136b98,
>>>>pout=0x8136c08,
>>>>fd=0) at lmtpengine.c:1527
>>>>#11 0x0804e250 in service_main (argc=1, argv=0x812c6f0,
>>>>envp=0xbfffdd8c)
>>>>at lmtpd.c:232
>>>>#12 0x0804dfd9 in main (argc=1, argv=0xbfffdd84, envp=0xbfffdd8c) at
>>>>service.c:557
>>>>#13 0x42017589 in __libc_start_main () from /lib/i686/libc.so.6
>>>>
>>>>
>>>>---
>>>>Cyrus Home Page: http://asg.web.cmu.edu/cyrus
>>>>Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
>>>>List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
>>>>
>>>
>>>
>>>--
>>>Kenneth Murchison     Oceana Matrix Ltd.
>>>Software Engineer     21 Princeton Place
>>>716-662-8973 x26      Orchard Park, NY 14127
>>>--PGP Public Key--    http://www.oceana.com/~ken/ksm.pgp
>>>
>>>
>>
>>
>>---
>>Cyrus Home Page: http://asg.web.cmu.edu/cyrus
>>Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
>>List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
>>
>>
> 
> 
> 
> ---
> Cyrus Home Page: http://asg.web.cmu.edu/cyrus
> Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
> List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
> 


-- 
Kenneth Murchison     Oceana Matrix Ltd.
Software Engineer     21 Princeton Place
716-662-8973 x26      Orchard Park, NY 14127
--PGP Public Key--    http://www.oceana.com/~ken/ksm.pgp
---
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html

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