<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">hello.<div class=""><br class=""></div><div class="">First of all, my original inquiry is here: <a href="https://www.redhat.com/archives/pam-list/2018-May/msg00004.html" class="">https://www.redhat.com/archives/pam-list/2018-May/msg00004.html</a></div><div class=""><br class=""></div><div class="">I think the issue is that the httpd daemon is “hammering” pam with too many “auths”, and thus when it begins to spit out</div><div class=""><br class=""></div><div class=""><span class=""><blockquote type="cite" class=""><span class="">May 22 18:31:32 DD-WRT httpd[536]: pam_unix(httpd:auth): auth could not identify password for [root]<br class=""></span><span class=""></span></blockquote><span class=""><blockquote type="cite" class="">May 22 18:31:32 DD-WRT httpd[536]: pam_unix(httpd:auth): auth could not identify password for [root]<br class=""></blockquote><div class=""><br class=""></div><div class="">follwoed by</div><div class=""><br class=""></div><div class=""><span class=""><blockquote type="cite" class="">May 22 18:31:32 DD-WRT : Caught SIGSEGV (11) sent by kernel in ??? <br class="">May 22 18:31:32 DD-WRT : Thread 2373: httpd <br class="">May 22 18:31:32 DD-WRT : === Context: <br class="">May 22 18:31:32 DD-WRT : ZERO:00000000 AT:00000001 V0:00000000 V1:00000001 A0:6677656e A1:00000001 <br class="">May 22 18:31:32 DD-WRT : A2:00000010 A3:74600471 T0:00000001 T1:00000fa6 T2:00000000 T3:006e7275 <br class="">May 22 18:31:32 DD-WRT : T4:76dbae28 T5:77c28020 T6:004400b0 T7:746005b8 S0:746004b0 S1:77adda30 <br class="">May 22 18:31:32 DD-WRT : S2:746005b0 S3:74600470 S4:76dbb920 S5:00000000 S6:00409804 S7:76dbb920 <br class="">May 22 18:31:32 DD-WRT : T8:00000000 T9:77ad90e8 K0:7460049b K1:00000000 GP:77bf7e20 SP:76dbaee8 <br class="">May 22 18:31:32 DD-WRT : FP:76dbaf40 RA:77bb4484 <br class="">May 22 18:31:32 DD-WRT : === Backtrace: <br class="">May 22 18:31:32 DD-WRT : # [0x77bb442c]: ra offset 44 <br class="">May 22 18:31:32 DD-WRT : # [0x77bb4418]: stack size 48 <br class="">May 22 18:31:32 DD-WRT : # [0x77bb45e8]: ra offset 36 <br class="">May 22 18:31:32 DD-WRT : # [0x77bb45d0]: stack size 40 <br class="">May 22 18:31:32 DD-WRT : # [0x77bfbb54]: ra offset 172 <br class="">May 22 18:31:32 DD-WRT : # [0x77bfbb28]: stack size 176 <br class="">May 22 18:31:32 DD-WRT : # [0x77b5768c]: stack size 32 <br class="">May 22 18:31:32 DD-WRT : # [0x77b57678]: stack size 32 <br class="">May 22 18:31:32 DD-WRT : # [0x77b5761c]: stack size 32 <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](+0x00160474)[0x77bb4474] <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](__libc_thread_freeres+0x00000058)[0x77bb461c] <br class="">May 22 18:31:32 DD-WRT : /lib/libpthread.so.0[0x77bf5000](+0x00006c84)[0x77bfbc84] <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](+0x001036ac)[0x77b576ac] <br class="">May 22 18:31:32 DD-WRT : ???(+0)[0x77f9b030] <br class="">May 22 18:31:32 DD-WRT : === Code: <br class="">May 22 18:31:32 DD-WRT : 77bb4434: afb10020 afb0001c 1260001c 26700040 00602025 8f8394f0 ac400000 00641821 <br class="">May 22 18:31:32 DD-WRT : 77bb4454: 24020001 8f9187ec a0620000 26720140 8e040000 00000000 10800009 00000000 <br class="">May 22 18:31:32 DD-WRT : 77bb4474: >8c820000 0220c825 0320f809 ae020000 8e040000 00000000 1480fff9 00000000 <br class="">May 22 18:31:32 DD-WRT : 77bb4494: 26100004 1650fff2 0220c825 0320f809 02602025 8fbc0010 00000000 8f8294e8 <br class="">May 22 18:31:32 DD-WRT : Caught SIGABRT (6) sent by tkill <br class="">May 22 18:31:32 DD-WRT : Thread 2374: httpd <br class="">May 22 18:31:32 DD-WRT : === Context: <br class="">May 22 18:31:32 DD-WRT : ZERO:00000000 AT:00000001 V0:00000000 V1:74ffec00 A0:00000003 A1:74ffec00 <br class="">May 22 18:31:32 DD-WRT : A2:00000000 A3:00000000 T0:00000000 T1:00000401 T2:00000001 T3:77fa7000 <br class="">May 22 18:31:32 DD-WRT : T4:00002000 T5:fffffffc T6:00100000 T7:00001072 S0:00000000 S1:74ffec00 <br class="">May 22 18:31:32 DD-WRT : S2:77bf4000 S3:00000010 S4:77ae4c70 S5:77f9a000 S6:00000002 S7:00000002 <br class="">May 22 18:31:32 DD-WRT : T8:77abf088 T9:77a85fb0 K0:00000010 K1:00000000 GP:77bf7e20 SP:74ffeb78 <br class="">May 22 18:31:32 DD-WRT : FP:74ffee10 RA:77a87754 <br class="">May 22 18:31:32 DD-WRT : === Backtrace: <br class="">May 22 18:31:32 DD-WRT : # [0x77a85fc0]: stack size 272 <br class="">May 22 18:31:32 DD-WRT : # [0x77a875e4]: ra offset 316 <br class="">May 22 18:31:32 DD-WRT : # [0x77a875dc]: stack size 320 <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](gsignal+0x000000d0)[0x77a86080] <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](abort+0x00000184)[0x77a87754] <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](__libc_fatal+0x00000000)[0x77ace564] <br class="">May 22 18:31:32 DD-WRT : /usr/lib/libutils.so[0x77c7f000](+0x00014b74)[0x77c93b74] <br class="">May 22 18:31:32 DD-WRT : === Code: <br class="">May 22 18:31:32 DD-WRT : 77a86040: 0000000c 00402025 2402107e 0000000c 00402825 02003025 240210aa 0000000c <br class="">May 22 18:31:32 DD-WRT : 77a86060: 14e0000c 00408025 24040003 02202825 00003025 24070010 24021063 0000000c <br class="">May 22 18:31:32 DD-WRT : 77a86080: >02001025 8fb1010c 8fb00108 03e00008 27bd0110 8f8294d8 7c03e83b 00431021 <br class="">May 22 18:31:32 DD-WRT : 77a860a0: ac500000 1000fff0 2410ffff 00000000 3c1c0017 279c1d70 0399e021 04800005 <br class="">May 22 18:31:32 DD-WRT : Caught SIGABRT (6) sent by tkill <br class="">May 22 18:31:32 DD-WRT : Thread 2370: httpd <br class="">May 22 18:31:32 DD-WRT : === Context: <br class="">May 22 18:31:32 DD-WRT : ZERO:00000000 AT:00000001 V0:00000000 V1:7789fc00 A0:00000003 A1:7789fc00 <br class="">May 22 18:31:32 DD-WRT : A2:00000000 A3:00000000 T0:00000000 T1:00000401 T2:77f99000 T3:77fa7000 <br class="">May 22 18:31:32 DD-WRT : T4:00002000 T5:fffffffc T6:00100000 T7:00001072 S0:00000000 S1:7789fc00 <br class="">May 22 18:31:32 DD-WRT : S2:77bf4000 S3:00000010 S4:77ae4c70 S5:77f99000 S6:00000002 S7:00000002 <br class="">May 22 18:31:32 DD-WRT : T8:77abf088 T9:77a85fb0 K0:00000010 K1:00000000 GP:77bf7e20 SP:7789fb78 <br class="">May 22 18:31:32 DD-WRT : FP:7789fe10 RA:77a87754 <br class="">May 22 18:31:32 DD-WRT : === Backtrace: <br class="">May 22 18:31:32 DD-WRT : # [0x77a85fc0]: stack size 272 <br class="">May 22 18:31:32 DD-WRT : # [0x77a875e4]: ra offset 316 <br class="">May 22 18:31:32 DD-WRT : # [0x77a875dc]: stack size 320 <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](gsignal+0x000000d0)[0x77a86080] <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](abort+0x00000184)[0x77a87754] <br class="">May 22 18:31:32 DD-WRT : /lib/libc.so.6[0x77a54000](__libc_fatal+0x00000000)[0x77ace564] <br class="">May 22 18:31:32 DD-WRT : /usr/lib/libutils.so[0x77c7f000](+0x00014b74)[0x77c93b74] <br class="">May 22 18:31:32 DD-WRT : === Code: <br class="">May 22 18:31:32 DD-WRT : 77a86040: 0000000c 00402025 2402107e 0000000c 00402825 02003025 240210aa 0000000c <br class="">May 22 18:31:32 DD-WRT : 77a86060: 14e0000c 00408025 24040003 02202825 00003025 24070010 24021063 0000000c <br class="">May 22 18:31:32 DD-WRT : 77a86080: >02001025 8fb1010c 8fb00108 03e00008 27bd0110 8f8294d8 7c03e83b 00431021 <br class="">May 22 18:31:32 DD-WRT : 77a860a0: ac500000 1000fff0 2410ffff 00000000 3c1c0017 279c1d70 0399e021 04800005 <br class=""><br class=""></blockquote><br class=""></span><span class=""></span></div><div class=""><span class="">that it’s a result of too many ‘auth’ requests being sent to PAM, which eventually has the module return “could not identify password for [user]”.</span></div><div class=""><span class=""><br class=""></span></div><div class=""><span class="">My question is: is there a way to increase the number of auth attempts for this program? This specific page is trying to query 18-20 interfaces and then render their activity via SVG.</span></div><div class=""><span class=""><span class="Apple-tab-span" style="white-space:pre"> </span>-even though I’m only using one of the interfaces, the UI will draw all 18-20 anyways, so I suspect the daemon’s voluminous attempts (due to the SVG being a plot that’s updated constantly) results in this error, as some kind of throttling.</span></div><div class=""><span class=""><br class=""></span></div><div class=""><span class="">any tips? </span></div><div class=""><br class=""></div></span></span></div><div class=""><div class=""> <span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;">Thanks,<br class="">Gagan<br class=""><br class=""><br class=""><br class=""></span> </div> <br class=""></div></body></html>