[Bug 11338] New: Rsync Crash - Segmentation fault

classic Classic list List threaded Threaded
3 messages Options
Reply | Threaded
Open this post in threaded view
|

[Bug 11338] New: Rsync Crash - Segmentation fault

samba-bugs
https://bugzilla.samba.org/show_bug.cgi?id=11338

            Bug ID: 11338
           Summary: Rsync Crash - Segmentation fault
           Product: rsync
           Version: 3.1.1
          Hardware: x64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: core
          Assignee: [hidden email]
          Reporter: [hidden email]
        QA Contact: [hidden email]

Created attachment 11170
  --> https://bugzilla.samba.org/attachment.cgi?id=11170&action=edit
Core file generated at crash

Dear Team,

We are facing a crash in rsync on one of our production servers. We have
updated rsync to the latest version 3.1.1 but still crash is observed. Below
call stack is generated by the crash:
(gdb)
#0  0x0000003ad7e25433 in __gconv_transform_ascii_internal () from
/lib64/libc.so.6
#1  0x0000003ad7e20264 in __gconv () from /lib64/libc.so.6
#2  0x0000003ad7e1f83c in iconv () from /lib64/libc.so.6
#3  0x000000000040d252 in iconvbufs ()
#4  0x0000000000423bce in rwrite ()
#5  0x0000000000423505 in rprintf ()
#6  0x000000000042b911 in whine_about_eof ()
#7  0x000000000042f5e2 in read_buf ()
#8  0x000000000042fde1 in read_int ()
#9  0x000000000043055d in setup_protocol ()
#10 0x000000000041ffb8 in client_run ()
#11 0x00000000004209c6 in main ()

Please let us know if any additional information is needed for debugging.

Regards,
Balveer Singh

--
You are receiving this mail because:
You are the QA Contact for the bug.
--
Please use reply-all for most replies to avoid omitting the mailing list.
To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync
Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
Reply | Threaded
Open this post in threaded view
|

[Bug 11338] Rsync Crash - Segmentation fault

samba-bugs
https://bugzilla.samba.org/show_bug.cgi?id=11338

Wayne Davison <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #1 from Wayne Davison <[hidden email]> ---
You need to compile rsync with debug symbols (or load an rpm/deb/etc that
provides debug symbols) to get useful info in your core's backtrace.  You
should be figuring out why the call to iconvbufs is crashing by checking its
args (change level to rwrite() and look at the vars). Rsync is exiting due to
an EOF in the protocol stream (the whine_about_eof() call), but the message
that it outputs shouldn't cause the iconv code any issues.

--
You are receiving this mail because:
You are the QA Contact for the bug.
--
Please use reply-all for most replies to avoid omitting the mailing list.
To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync
Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
Reply | Threaded
Open this post in threaded view
|

[Bug 11338] Rsync Crash - Segmentation fault

Samba - rsync mailing list
In reply to this post by samba-bugs
https://bugzilla.samba.org/show_bug.cgi?id=11338

--- Comment #2 from James Stevenson <[hidden email]> ---

I seem to see the same crash. Here is some additional details with symbols. It
seems to happen during network timeouts.

#0  0x00007fcc2e167b05 in utf8_internal_loop (step=0x560710d73f90,
step_data=0x560710d740c0, irreversible=0x7ffccf327d28, outend=0x560710d7dad0
"", outptrp=<synthetic pointer>,
    inend=0x7ffccf3287f8 "\n", inptrp=0x7ffccf327e80) at ../iconv/loop.c:325
#1  __gconv_transform_utf8_internal (step=0x560710d73f90,
data=data@entry=0x560710d740c0, inptrp=inptrp@entry=0x7ffccf327e80,
inend=inend@entry=0x7ffccf3287f8 "\n",
    outbufstart=outbufstart@entry=0x0,
irreversible=irreversible@entry=0x7ffccf327df8, do_flush=do_flush@entry=0,
consume_incomplete=consume_incomplete@entry=0)
    at ../iconv/skeleton.c:613
#2  0x00007fcc2e162722 in __gconv (cd=0x560710d740b0,
inbuf=inbuf@entry=0x7ffccf327e80, inbufend=0x7ffccf3287f8 "\n",
outbuf=outbuf@entry=0x7ffccf327e98, outbufend=<optimized out>,
    irreversible=irreversible@entry=0x7ffccf327df8) at gconv.c:79
#3  0x00007fcc2e161fa1 in iconv (cd=cd@entry=0x560710d740b0,
inbuf=inbuf@entry=0x7ffccf327e80, inbytesleft=inbytesleft@entry=0x7ffccf327e88,
outbuf=outbuf@entry=0x7ffccf327e98,
    outbytesleft=outbytesleft@entry=0x7ffccf327e90) at iconv.c:52
#4  0x000056070fa1954f in iconvbufs (ic=ic@entry=0x560710d740b0,
in=in@entry=0x7ffccf327f20, out=out@entry=0x7ffccf327f00, flags=0) at
rsync.c:208
#5  0x000056070fa30191 in rwrite (code=<optimized out>, code@entry=FERROR,
buf=<optimized out>,
    buf@entry=0x7ffccf3287b0 "rsync: connection unexpectedly closed (0 bytes
received so far) [sender]\n", len=<optimized out>, is_utf8=<optimized out>,
is_utf8@entry=0) at log.c:374
#6  0x000056070fa307e3 in rprintf (code=code@entry=FERROR,
format=format@entry=0x56070fa677b0 "rsync: connection unexpectedly closed (%s
bytes received so far) [%s]\n") at log.c:433
#7  0x000056070fa39064 in whine_about_eof (allow_kluge=allow_kluge@entry=0) at
io.c:231
#8  0x000056070fa3c992 in read_buf (f=f@entry=5, buf=buf@entry=0x7ffccf329cd0
"\037", len=len@entry=4) at io.c:1834
#9  0x000056070fa3caa1 in read_int (f=f@entry=5) at io.c:1729
#10 0x000056070fa3e48c in setup_protocol (f_out=4, f_in=5) at compat.c:158
#11 0x000056070fa2d4b0 in client_run (f_in=5, f_out=4, pid=9022, argc=1,
argv=0x560710d74760) at main.c:1110
#12 0x000056070fa109a1 in start_client (argv=0x560710d74760, argc=1) at
main.c:1420
#13 main (argc=2, argv=0x560710d74760) at main.c:1648
(gdb) f 4
#4  0x000056070fa1954f in iconvbufs (ic=ic@entry=0x560710d740b0,
in=in@entry=0x7ffccf327f20, out=out@entry=0x7ffccf327f00, flags=0) at
rsync.c:208
208    in rsync.c
(gdb) p flags
$15 = 0
(gdb) p xbuf
Attempt to use a type name as an expression
(gdb) p in
$16 = (xbuf *) 0x7ffccf327f20
(gdb) p *in
$17 = {buf = 0x7ffccf3287b0 "rsync: connection unexpectedly closed (0 bytes
received so far) [sender]\n", pos = 18889, len = 18446744073709532799, size =
18446744073709551615}
(gdb) p *out
$18 = {buf = 0x7ffccf327f40 "\"\023", pos = 0, len = 0, size = 1024}

--
You are receiving this mail because:
You are the QA Contact for the bug.

--
Please use reply-all for most replies to avoid omitting the mailing list.
To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync
Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html