[dtrace-discuss] apache hangs on sol10u2 not sol10u1

[Fletcher Cocquyt]

So I tarred up the apache install and dropped it on a sol10u1 server - it
runs perfectly clean - no hanging web/svn operations

Maybe I'm guilty of jumping on U2 too quickly before the first round of
patches?

Still have the Sun case open - but I think I'll need to downgrade to U1 for
operational time constraints.


-----Original Message-----
From: dtrace-discuss-bounces at opensolaris.org
[mailto:dtrace-discuss-bounces at opensolaris.org] On Behalf Of Fletcher
Cocquyt
Sent: Monday, August 07, 2006 2:05 PM
To: 'Matty'; 'Solaris Dtrace List'
Subject: RE: [dtrace-discuss] dtrace apache hang on sol10u2

Apache hang - pstack below:

god at irt-web-xyz:httpd-2.0.59 2:03pm 129 # pstack 6092

6092:   /opt/httpd-2.0.59/bin/httpd -k start
 bfb906d7 pollsys  (8044ad0, 1, 8044ab0, 0)
 bfb3a722 poll     (8044ad0, 1, 493e0, 493e0, 7, 40004) + 52
 bfdba1e7 apr_poll (8044b40, 1, 8044b3c, 493e0, 0, 0) + ab
 bfdba7f7 apr_wait_for_io_or_timeout (0, 8242718, 0, 8046d30) + 6f
 bfdb0ec2 apr_socket_sendv (8242718, 8046d30, 2, 8044be8) + 4a
 bfdb125a apr_sendv (8242718, 8046d30, 2, 8044be8, 8271a18, 8242718) + 22
 080b426e writev_it_all (4, 2050f, 8044c64, 8271a18, 0, 0) + 3e
 080b5832 core_output_filter (8242bc8, 8271a18, 82466f0, bfdcb9b8) + 9a6
 0808da31 chunk_filter (8313848, 8271a18, 852cbc0, 1000) + 169
 080b0126 ap_content_length_filter (8265e38, 8271a18, 8046ea8, bfdb8aab) +
aa
 08091353 ap_byterange_filter (8265e20, 8271a18, 1f91b, bf816b47) + 73
 080adf81 ap_filter_flush (8271a18, 8265e20, 82466f0, 1355) + 11
 bfe16126 apr_brigade_write (8271a18, 80adf70, 8265e20, 921f0e0, 1f91b,
92d7aa8) + 7a
 bf8dd62b brigade_write_fn (85a7270, 921f0e0, 8046fa8, 0) + 2f
 bf813a92 svn_stream_write (85a7278, 921f0e0, 8046fa8, 1f91b) + 26
 bf8161a7 encode_data (862dda8, 92c04c0, 8046ffc, 8577ad0) + 8f
 bf813a92 svn_stream_write (85a7288, 92c04c0, 8046ffc, fffffffe, 8490800,
84907e8) + 26
 bf863080 window_handler (92e34c8, 8577ad0, 0, bf8de3d3) + 28c
 bf8de416 window_handler (92e34c8, 85a7260, 84ae838, bf8c88fc) + 56
 bf864c11 svn_txdelta_send_txstream (84c3c48, bf8de3c0, 85a7260, 836d578) +
51
 bf8ae87f update_entry (0, 0, 836d5c0, 84fbdc0, 8329550, 836d5b0) + 533
 bf8ae28e delta_dirs (0, 83294a8, 8329550, 83294a0, 0, 8329468) + 3f6
 bf8ae727 update_entry (0, 0, 83294a8, 832d408, 82b8798, 83294a0) + 3db
 bf8ae28e delta_dirs (824bac0, 827a5a0, 82b8798, bf8b1ce9, 1, 8265158) + 3f6
 bf8aee76 svn_repos_finish_report (827a518, 8265158, 8282240, 827a6b0) + 3c2
 bf8defa6 dav_svn__update_report (8271710, 82713e0, 8265e20, 827149a) + 976
 bf8e1443 dav_svn_deliver_report (8265190, 8271710, 82713e0, 8265e20,
8265190, bf99d50c) + 20b
 bf996c76 dav_method_report (ffffffff, 0, 0, bfdb8aab, 8271348, 8271170) +
be
 bf997f52 dav_handler (8265190, 82664e8, 0, 82664b8) + 906
 080a24ea ap_run_handler (8265190, 8265190, 8047838, 80a2847, 82651a8, 64) +
32
 080a28b1 ap_invoke_handler (8265190, 0, 8047868, 80ae861) + ad
 080920b5 ap_process_request (8265190, 4, 8265190, 0) + 135
 0808db9d ap_process_http_connection (82427f0, 82466f0, 80478c8, 80abe85) +
e9
 080abbf6 ap_run_process_connection (82427f0, 8242718, 82426e0, 82427f0, 0,
0) + 32
 080a0cfd child_main (10, 1, 1, 0) + 345
 080a0f27 make_child (8047a00, 8047a08, 8047a38, 80a164f, 3f1, 8235440) + d7
 080a0fb8 startup_children (3f1, 8235440, 8047978, 8074d65, fc8, 5) + 40
 080a164f ap_mpm_run (80f9150, 8133238, 80fe880, 80fe880) + 68f
 080a6963 main     (3, 8047ad8, 8047ae8) + 5cb
 0806d63c _start   (3, 8047bd8, 8047bf4, 8047bf7, 0, 8047bfd) + 80


-----Original Message-----
From: dtrace-discuss-bounces at opensolaris.org
[mailto:dtrace-discuss-bounces at opensolaris.org] On Behalf Of Matty
Sent: Monday, August 07, 2006 1:57 PM
To: Solaris Dtrace List
Subject: Re: [dtrace-discuss] dtrace apache hang on sol10u2


On Mon, 7 Aug 2006, Fletcher Cocquyt wrote:

> I have a reproducible hang on my sol10u2 apache 2.0.59 web server.

Is this a system or web server hang? Assuming the web server is hung, what 
does pstack print when you run it against a hung process?

- Ryan
--
UNIX Administrator
http://prefetch.net

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