If you must use mod_php and prefork (and get segfaults), the first step is
to usually unload all mod_php extensions that are not strictly needed. If
you use the event or worker mpm, then you must recompile php to be
thread-safe.
A better and future-proof approach would be to set up fastcgi (via
proxy_fcgi, mod_fcgid or mod_fastcgi) and serve the php scripts separately.
On Tue, Sep 4, 2018 at 5:26 PM Matthew Goebel <mgoe...@emich.edu> wrote:
>
> Hello,
>
> apache 2.4.34
> php 7.1.21
> on SLES 12.sp3x64
>
> Grabbed a traceback of one of the failing process, not sure how to proceed
> from here, or if
> this is the correct forum.
>
> (gdb) backtrace full
> #0 0x00007f598af473dd in writev () from /lib64/libc.so.6
> No symbol table info available.
> #1 0x00007f598ba8dfaa in apr_socket_sendv (sock=sock@entry=0x7f596c011140,
>
> vec=vec@entry=0x7f597d1f5e60, nvec=nvec@entry=5,
> len=len@entry=0x7f597d1f5dd8) at network_io/unix/sendrecv.c:212
> rv = <optimized out>
> requested_len = <optimized out>
> i = <optimized out>
> #2 0x00000000004502e2 in writev_nonblocking (s=s@entry=0x7f596c011140,
> vec=vec@entry=0x7f597d1f5e60, nvec=5, bb=0x7f596c011900,
> cumulative_bytes_written=0x7f59300058f0, c=0x7f596c0113e8)
> at core_filters.c:787
> n = 0
> rv = 0
> arv = <optimized out>
> bytes_written = 0
> bytes_to_write = 68934
> i = <optimized out>
> offset = 0
> old_timeout = 60000000
> #3 0x0000000000450523 in send_brigade_nonblocking (s=s@entry=0x7f596c011140,
>
> bb=bb@entry=0x7f596c011900,
> bytes_written=bytes_written@entry=0x7f59300058f0, c=c@entry
> =0x7f596c0113e8)
> ---Type <return> to continue, or q <return> to quit---
> at core_filters.c:704
> bucket = <optimized out>
> next = <optimized out>
> rv = <optimized out>
> vec = {{iov_base = 0x7f59300088d8, iov_len = 3282}, {
> iov_base = 0x7f59402ef278, iov_len = 16413}, {
> iov_base = 0x7f59402f4288, iov_len = 16413}, {
> iov_base = 0x7f59402f9298, iov_len = 16413}, {
> iov_base = 0x7f5948102673, iov_len = 16413}, {iov_base = 0x0,
> iov_len = 0}, {iov_base = 0x0, iov_len = 0}, {iov_base = 0x0,
> iov_len = 0}, {iov_base = 0x0, iov_len = 0}, {iov_base = 0x0,
> iov_len = 0}, {iov_base = 0x0, iov_len = 140022526783755}, {
> iov_base = 0x400, iov_len = 140022526782984}, {
> iov_base = 0x7f59400fa350, iov_len = 140021303583824}, {
> iov_base = 0x10, iov_len = 140021437851264}, {
> iov_base = 0x7f59400fa450, iov_len = 140022560088857}, {
> iov_base = 0x0, iov_len = 140022571932715}}
> nvec = 5
> #4 0x0000000000451139 in send_brigade_blocking (c=0x7f596c0113e8,
> bytes_written=0x7f59300058f0, bb=0x7f596c011900, s=0x7f596c011140)
> at core_filters.c:733
> rv = 0
> #5 ap_core_output_filter (f=0x7f59300056d8, new_bb=0x7f596c011900)
> ---Type <return> to continue, or q <return> to quit---
> at core_filters.c:542
> c = 0x7f596c0113e8
> net = 0x7f5930005690
> ctx = 0x7f59300058d8
> bb = 0x7f596c011900
> bucket = <optimized out>
> next = <optimized out>
> flush_upto = <optimized out>
> bytes_in_brigade = 0
> non_file_bytes_in_brigade = <optimized out>
> eor_buckets_in_brigade = <optimized out>
> morphing_bucket_in_brigade = 0
> rv = <optimized out>
> #6 0x00007f5986c2a488 in bio_filter_out_pass (
> outctx=outctx@entry=0x7f596c0118e0) at ssl_engine_io.c:139
> No locals.
> #7 0x00007f5986c2a521 in bio_filter_out_write (bio=<optimized out>,
> in=0x7f5948102673 "\027\003\003@\030@N
> \252Ţ\260\216\371\362G\364\030\067\205\213}t\266@!\253\345M5\257'\252X)\310b\222\225#\303ԙ*",
> inl=16413)
> at ssl_engine_io.c:240
> outctx = 0x7f596c0118e0
> e = <optimized out>
> need_flush = <optimized out>
> ---Type <return> to continue, or q <return> to quit---
> #8 0x00007f5988fdabeb in BIO_write () from /lib64/libcrypto.so.1.0.0
> No symbol table info available.
> #9 0x00007f5989341bd2 in ?? () from /lib64/libssl.so.1.0.0
> No symbol table info available.
> #10 0x00007f59893422c6 in ?? () from /lib64/libssl.so.1.0.0
> No symbol table info available.
> #11 0x00007f5986c2da86 in ssl_filter_write (f=0x7f596c0118b8,
> f=0x7f596c0118b8, len=<optimized out>, data=<optimized out>)
> at ssl_engine_io.c:852
> filter_ctx = 0x7f596c011860
> outctx = 0x7f596c0118e0
> res = <optimized out>
> #12 ssl_io_filter_output (f=0x7f596c0118b8, bb=0x7f59781bc418)
> at ssl_engine_io.c:1808
> data = 0x7f591ff0b000 "[{\"id\":167,\"name\":\"1st Floor, Across
> from Printing
> Station\",\"slug\":\"1st-floor-across-from-printing-station\",\"alias\":null,\"description\":null,\"latitudeIllustration\":null,\"longitudeIllustration\":null,\"la"...
> len = 590666
> bucket = 0x7f5930000a68
> status = <optimized out>
> filter_ctx = 0x7f596c011860
> inctx = <optimized out>
> ---Type <return> to continue, or q <return> to quit---
> outctx = 0x7f596c0118e0
> rblock = APR_NONBLOCK_READ
> #13 0x00007f5986c2abca in ssl_io_filter_coalesce (f=0x7f596c011890,
> bb=0x7f59781bc418) at ssl_engine_io.c:1725
> e = <optimized out>
> upto = <optimized out>
> bytes = <optimized out>
> ctx = <optimized out>
> count = <optimized out>
> #14 0x000000000046fa74 in ap_http_chunk_filter (f=0x7f59781bcaf0,
> b=0x7f59781bc418) at chunk_filter.c:188
> bytes = <optimized out>
> eos = <optimized out>
> flush = <optimized out>
> chunk_hdr =
> "9034a\r\n\000\210\336\001\060Y\177\000\000\000\000\000"
> c = 0x7f596c0113e8
> more = <optimized out>
> tmp = 0x0
> e = <optimized out>
> rv = <optimized out>
> #15 0x000000000046e3c1 in ap_http_header_filter (f=<optimized out>,
> b=0x7f59781bc418) at http_filters.c:1537
> r = <optimized out>
> ---Type <return> to continue, or q <return> to quit---
> c = <optimized out>
> clheader = <optimized out>
> protocol = 0x479e1a "HTTP/1.1"
> e = <optimized out>
> b2 = <optimized out>
> h = {pool = 0x7f59300068a8, bb = 0x7f59781bc888}
> ctx = 0x7f59781bc4b8
> ctype = <optimized out>
> eb = <optimized out>
> rv = <optimized out>
> recursive_error = 0
> #16 0x000000000043e567 in ap_content_length_filter (f=0x7f5930007de0,
> b=0x7f59781bc418) at protocol.c:1849
> r = 0x7f593001de88
> ctx = 0x7f59781bc468
> e = 0x7f59781bc420
> eos = <optimized out>
> eblock = APR_NONBLOCK_READ
> #17 0x000000000046fd27 in ap_byterange_filter (f=0x7f5930007db8,
> bb=0x7f59781bc418) at byterange_filter.c:494
> r = 0x7f593001de88
> c = 0x7f596c0113e8
> e = <optimized out>
> ---Type <return> to continue, or q <return> to quit---
> bsend = <optimized out>
> tmpbb = <optimized out>
> range_start = <optimized out>
> range_end = <optimized out>
> clength = <optimized out>
> rv = <optimized out>
> found = 0
> bound_head = 0x0
> indexes = <optimized out>
> idx = <optimized out>
> i = <optimized out>
> original_status = <optimized out>
> max_ranges = <optimized out>
> max_overlaps = 20
> max_reversals = <optimized out>
> overlaps = <optimized out>
> reversals = <optimized out>
> core_conf = <optimized out>
> #18 0x000000000043aa04 in ap_filter_flush (bb=0x7f59781bc418,
> ctx=<optimized out>) at util_filter.c:683
> f = <optimized out>
> rv = <optimized out>
> #19 0x000000000043e952 in ap_rwrite (buf=<optimized out>, nbyte=590666,
> ---Type <return> to continue, or q <return> to quit---
> r=<optimized out>) at protocol.c:2000
> No locals.
> #20 0x00007f598525907c in php_apache_sapi_ub_write (
> str=0x7f591ff0b000 "[{\"id\":167,\"name\":\"1st Floor, Across from
> Printing
> Station\",\"slug\":\"1st-floor-across-from-printing-station\",\"alias\":null,\"description\":null,\"latitudeIllustration\":null,\"longitudeIllustration\":null,\"la"...,
> str_length=590666)
> at /usr/local/src/php-7.1.21/sapi/apache2handler/sapi_apache2.c:81
> r = 0x7f593001de88
> ctx = 0x7f593825f4c0
> #21 0x00007f59850c6051 in php_output_op (op=0,
> str=0x7f591fe12018 "[{\"id\":167,\"name\":\"1st Floor, Across from
> Printing
> Station\",\"slug\":\"1st-floor-across-from-printing-station\",\"alias\":null,\"description\":null,\"latitudeIllustration\":null,\"longitudeIllustration\":null,\"la"...,
> len=590666) at /usr/local/src/php-7.1.21/main/output.c:1073
> context = {op = 0, in = {data = 0x0, size = 0, used = 0, free = 0,
> _reserved = 0}, out = {
> data = 0x7f591ff0b000 "[{\"id\":167,\"name\":\"1st Floor,
> Across from Printing
> Station\",\"slug\":\"1st-floor-across-from-printing-station\",\"alias\":null,\"description\":null,\"latitudeIllustration\":null,\"longitudeIllustration\":null,\"la"...,
> size = 593920, used = 590666, free = 0, _reserved = 0}}
> active = 0x7f596325e000
> obh_cnt = 1
> ---Type <return> to continue, or q <return> to quit---
> #22 0x00007f59850c3b06 in php_output_write (
> str=0x7f591fe12018 "[{\"id\":167,\"name\":\"1st Floor, Across from
> Printing
> Station\",\"slug\":\"1st-floor-across-from-printing-station\",\"alias\":null,\"description\":null,\"latitudeIllustration\":null,\"longitudeIllustration\":null,\"la"...,
> len=590666) at /usr/local/src/php-7.1.21/main/output.c:257
> No locals.
> #23 0x00007f59850a5cf9 in php_output_wrapper (
> str=0x7f591fe12018 "[{\"id\":167,\"name\":\"1st Floor, Across from
> Printing
> Station\",\"slug\":\"1st-floor-across-from-printing-station\",\"alias\":null,\"description\":null,\"latitudeIllustration\":null,\"longitudeIllustration\":null,\"la"...,
> str_length=590666) at /usr/local/src/php-7.1.21/main/main.c:1964
> No locals.
> #24 0x00007f598524548f in ZEND_ECHO_SPEC_TMPVAR_HANDLER ()
> at /usr/local/src/php-7.1.21/Zend/zend_vm_execute.h:51332
> str = 0x7f591fe12000
> free_op1 = 0x7f59632134f0
> z = 0x7f59632134f0
> #25 0x00007f59851d04f0 in execute_ex (ex=0x7f5963213030)
> at /usr/local/src/php-7.1.21/Zend/zend_vm_execute.h:429
> orig_opline = 0x7f596c011340
> orig_execute_data = 0x7f596c0110b8
> #26 0x00007f59851d06f2 in zend_execute (op_array=0x7f5963277100,
> return_value=0x0) at
> /usr/local/src/php-7.1.21/Zend/zend_vm_execute.h:474
> ---Type <return> to continue, or q <return> to quit---
> execute_data = 0x7f5963213030
> #27 0x00007f59851663f3 in zend_execute_scripts (type=8, retval=0x0,
> file_count=3) at /usr/local/src/php-7.1.21/Zend/zend.c:1482
> files = {{gp_offset = 40, fp_offset = 48,
> overflow_arg_area = 0x7f597d1f68c0,
> reg_save_area = 0x7f597d1f67f0}}
> i = 1
> file_handle = 0x7f597d1f8b10
> op_array = 0x7f5963277100
> #28 0x00007f59850a73b5 in php_execute_script (primary_file=0x7f597d1f8b10)
> at /usr/local/src/php-7.1.21/main/main.c:2577
> realfile = "\200\267\313%Y\177\000\000@\000
> cY\177\000\000X̀\205Y\177\000\000\t\000\000\200\273\000\000\000\000\000\300%Y\177\000\000\030\000\000\000\060\000\000\000\200\200\037}Y\177\000\000\300\177\037}Y\177",
> '\000' <repeats 14 times>,
> "\273\000\000\000xր\205Y\177\000\000\200\267\313%Y\177\000\000@
> {\037}Y\177\000\000\215\354\033\205Y\177\000\000|\001\000\000\f\f\000\000\200\267\313%Y\177\000\000pV%cY\177\000\000\363Q\200/\240R\337FXY\021\070Y\177\000\000(\322\000lY\177\000\000\370\316\000lY\177\000\000\200\321\000lY\177\000\000\363Q@
> -\240R\337F\363Q\214\f\251\242\336F\000\000\000\000Y\177\000\000\070\353"...
> __orig_bailout = 0x7f597d1f8b80
> __bailout = {{__jmpbuf = {16, 5106891357341897203,
> 140021034245768,
> 140022040826856, 140022040826040, 140022040826688,
> 5106891349752304115, 5106697741168169459}, __mask_was_saved
> = 0,
> ---Type <return> to continue, or q <return> to quit---
> __saved_mask = {__val = {140022328031680, 0, 1022202216448,
> 140020228816896, 0, 140020228816907, 140022472647926,
> 140022472647928, 5958008864, 140022328031760, 0,
> 18446744073709551615, 85899345920, 140022468438840,
> 140022472647933, 803158884352}}}}
> prepend_file_p = 0x0
> append_file_p = 0x0
> prepend_file = {handle = {fd = 0, fp = 0x0, stream = {handle =
> 0x0,
> isatty = 0, mmap = {len = 0, pos = 0, map = 0x0, buf = 0x0,
> old_handle = 0x0, old_closer = 0x0}, reader = 0x0,
> fsizer = 0x0, closer = 0x0}}, filename = 0x0, opened_path =
> 0x0,
> type = ZEND_HANDLE_FILENAME, free_filename = 0 '\000'}
> append_file = {handle = {fd = 0, fp = 0x0, stream = {handle = 0x0,
> isatty = 0, mmap = {len = 0, pos = 0, map = 0x0, buf = 0x0,
> old_handle = 0x0, old_closer = 0x0}, reader = 0x0,
> fsizer = 0x0, closer = 0x0}}, filename = 0x0, opened_path =
> 0x0,
> type = ZEND_HANDLE_FILENAME, free_filename = 0 '\000'}
> old_cwd = 0x7f597d1f68c0 "/"
> use_heap = 0 '\000'
> retval = 0
> #29 0x00007f598525aec3 in php_handler (r=0x7f593001de88)
> at /usr/local/src/php-7.1.21/sapi/apache2handler/sapi_apache2.c:712
> zfd = {handle = {fd = 1663463424, fp = 0x7f5963267000, stream = {
> ---Type <return> to continue, or q <return> to quit---
> handle = 0x7f5963267000, isatty = 0, mmap = {len = 1242,
> pos = 0, map = 0x0,
> buf = 0x7f598c576000 <error: Cannot access memory at
> address 0x7f598c576000>, old_handle = 0x0, old_closer = 0x0},
> reader = 0x7f59850ca32f <_php_stream_read>,
> fsizer = 0x7f59850a3431 <php_zend_stream_fsizer>,
> closer = 0x7f59850a340b <php_zend_stream_mmap_closer>}},
> filename = 0x7f593825d9e0 "/home/apache2/htdocs2/index.php",
> opened_path = 0x0, type = ZEND_HANDLE_MAPPED,
> free_filename = 0 '\000'}
> __orig_bailout = 0x0
> __bailout = {{__jmpbuf = {140021303573424, 5106891357130084851,
> 140021034245768, 140022040826856, 140022040826040,
> 140022040826688, 5106891357377548787, 5106698065591161331},
> __mask_was_saved = 0, __saved_mask = {__val =
> {140021034245768, 0,
> 11380080, 140022040826688, 140022496206646,
> 140021170826208,
> 140021034248000, 19, 140022040826856, 140021034246208,
> 140021034245768, 0, 140022328036488, 18446744069425425408,
> 140021034245768, 140022040826856}}}}
> ctx = 0x7f593825f4c0
> conf = 0xa93a90
> brigade = 0x7f59781bc268
> bucket = 0xadfe78
> ---Type <return> to continue, or q <return> to quit---
> rv = 0
> parent_req = 0x0
> #30 0x0000000000455850 in ap_run_handler (r=r@entry=0x7f593001de88)
> at config.c:170
> pHook = <optimized out>
> n = 5
> rv = -1
> #31 0x0000000000455d99 in ap_invoke_handler (r=r@entry=0x7f593001de88)
> at config.c:444
> handler = <optimized out>
> p = <optimized out>
> result = <optimized out>
> old_handler = 0x0
> ignore = <optimized out>
> #32 0x000000000046aa4c in ap_internal_redirect (new_uri=<optimized out>,
> r=<optimized out>) at http_request.c:791
> access_status = <optimized out>
> new = 0x7f593001de88
> #33 0x00007f5985dea25c in handler_redirect (r=0x7f5930006920)
> at mod_rewrite.c:5256
> No locals.
> #34 0x0000000000455850 in ap_run_handler (r=r@entry=0x7f5930006920)
> at config.c:170
> ---Type <return> to continue, or q <return> to quit---
> pHook = <optimized out>
> n = 4
> rv = -1
> #35 0x0000000000455d99 in ap_invoke_handler (r=r@entry=0x7f5930006920)
> at config.c:444
> handler = <optimized out>
> p = <optimized out>
> result = <optimized out>
> old_handler = 0x7f5985df2e14 "redirect-handler"
> ignore = <optimized out>
> #36 0x000000000046b6da in ap_process_async_request (r=0x7f5930006920)
> at http_request.c:453
> access_status = 0
> #37 0x0000000000467c51 in ap_process_http_async_connection
> (c=0x7f596c0113e8)
> at http_core.c:154
> r = 0x7f5930006920
> cs = 0x7f596c0113b0
> #38 ap_process_http_connection (c=0x7f596c0113e8) at http_core.c:248
> No locals.
> #39 0x000000000045f380 in ap_run_process_connection (c=c@entry
> =0x7f596c0113e8)
> at connection.c:42
> pHook = <optimized out>
> n = 2
> ---Type <return> to continue, or q <return> to quit---
> rv = -1
> #40 0x0000000000472dca in process_socket (thd=<optimized out>,
> p=<optimized out>, sock=<optimized out>, cs=0x7f596c011340,
> my_child_num=<optimized out>, my_thread_num=<optimized out>)
> at event.c:1048
> c = 0x7f596c0113e8
> conn_id = <optimized out>
> clogging = <optimized out>
> rv = <optimized out>
> rc = 0
> #41 0x0000000000474348 in worker_thread (thd=0xad5f40, dummy=<optimized
> out>)
> at event.c:2122
> csd = 0x7f596c011140
> cs = 0x0
> te = 0x0
> ptrans = 0x7f596c0110b8
> ti = <optimized out>
> process_slot = 0
> thread_slot = 5
> rv = <optimized out>
> is_idle = 0
> #42 0x00007f598b413724 in start_thread () from /lib64/libpthread.so.0
> No symbol table info available.
> ---Type <return> to continue, or q <return> to quit---
> #43 0x00007f598af4ee8d in clone () from /lib64/libc.so.6
> No symbol table info available.
>
>
>
> Thanks,
> Matt
>
> --
> Matthew Goebel : goe...@emunix.emich.edu : Unix Jockey @ EMU : Hail Eris
> Neo-Student, Net Lurker, Donut consumer, and procrastinating medher...
> "Always with the negative waves, Moriarty" - Oddball
> "Comfort the troubled, and trouble the comfortable." - Dietrich Bonhoeffer
>
>
