On 29.12.2017 23:04, Hilmar Preuße wrote: Hi Олег,
could you please attach both log files proftpd.log & sftp.log showing the crashes. Hilmar > On 28.12.2017 14:53, Hilmar Preuße wrote: > > Добры бечер Олег, > > On my system the addr2line command gives only useful results if I use > the numbers in (), like this. At least output below makes sense to me. > What does your addr2line returns? > > hille@amd64-sid:~$ addr2line -e /usr/sbin/proftpd 0x55e39fd633b0 > ??:0 > hille@amd64-sid:~$ addr2line -e /usr/sbin/proftpd 0x1f3b0 > ./src/pool.c:546 > > Hilmar > >> Hi Олег, >> >> did to try to run addr2line as described on [1]? Does is print something >> useful. The command is provided by package binutils. >> >> Hilmar >> >> [1] http://www.proftpd.org/docs/howto/Compiling.html >> >>> Got some positive results >>> >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): -----BEGIN STACK TRACE----- >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [0] /usr/sbin/proftpd(+0x1f3b0) >>> [0x55e39fd633b0] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [1] /usr/sbin/proftpd(+0x1f3b0) >>> [0x55e39fd633b0] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [2] /usr/sbin/proftpd(palloc+0x37) >>> [0x55e39fd634b2] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [3] /usr/sbin/proftpd(pcalloc+0x32) >>> [0x55e39fd63547] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [4] >>> /usr/sbin/proftpd(pr_response_add+0xee) [0x55e39fd8de25] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [5] /usr/lib/proftpd/mod_sftp.so(+0x3c7ef) >>> [0x7f04249dd7ef] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [6] >>> /usr/lib/proftpd/mod_sftp.so(sftp_auth_handle+0x62) [0x7f04249ddc31] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [7] >>> /usr/lib/proftpd/mod_sftp.so(sftp_ssh2_packet_handle+0x363) >>> [0x7f04249bc9ad] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [8] /usr/lib/proftpd/mod_sftp.so(+0xfa07) >>> [0x7f04249b0a07] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [9] /usr/sbin/proftpd(+0x19ee3) >>> [0x55e39fd5dee3] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [10] /usr/sbin/proftpd(+0x1a706) >>> [0x55e39fd5e706] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [11] /usr/sbin/proftpd(+0x1bf2f) >>> [0x55e39fd5ff2f] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [12] /usr/sbin/proftpd(main+0x94b) >>> [0x55e39fd60ce3] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [13] >>> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f04282e1561] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): [14] /usr/sbin/proftpd(_start+0x2a) >>> [0x55e39fd5adaa] >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): -----END STACK TRACE----- >>> 2017-12-28 07:32:21,761 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): ProFTPD terminating (signal 11) >>> 2017-12-28 07:32:21,762 sim-ng-data proftpd[26614] sim-ng-data >>> (PG10.local[192.168.3.17]): SSH2 session closed. >>> >>> >>> 28.12.2017 0:09, Hilmar Preuße пишет: >>>> On 26.12.2017 09:41, Мороз Олег wrote: >>>> >>>> Hi Олег, >>>> >>>>> Have made changes in >>>>> >>>>> /etc/security/limits.d/core_dump.conf >>>>> >>>>> then set path to save code dumps into /tmp >>>>> >>>>> vniiem@sim-ng-data /tmp % /sbin/sysctl -a -r kernel.core >>>>> kernel.core_pattern = /tmp/core.%e.%p.%t >>>>> kernel.core_pipe_limit = 0 >>>>> kernel.core_uses_pid = 0 >>>>> >>>>> Then relogin and reinstall proftpd, tried to login to ftp , but no >>>>> core.dump was generated >>>>> >>>> So, proftpd seems to trap the SIGSEGV (sig11) and performs a grace >>>> shutdown upon SIG11. I've found [1] giving some hints to debug crash >>>> problems. I've put debug binaries using --enable-devel=stacktrace on >>>> [2]. I've crashed the binaries using a SIGSEGV and found a stack trace >>>> in /var/log/proftpd/proftpd.log: >>>> >>>> 2017-12-27 21:51:07,528 amd64-sid proftpd[23112] amd64-sid: -----BEGIN >>>> STACK TRACE----- >>>> 2017-12-27 21:51:07,528 amd64-sid proftpd[23112] amd64-sid: [0] >>>> /lib/x86_64-linux-gnu/libc.so.6(__select+0x13) [0x7fd99e1c3cc3] >>>> 2017-12-27 21:51:07,529 amd64-sid proftpd[23112] amd64-sid: [1] >>>> /lib/x86_64-linux-gnu/libc.so.6(__select+0x13) [0x7fd99e1c3cc3] >>>> 2017-12-27 21:51:07,529 amd64-sid proftpd[23112] amd64-sid: [2] >>>> /usr/sbin/proftpd(+0x1a2d0) [0x5559bc50c2d0] >>>> 2017-12-27 21:51:07,529 amd64-sid proftpd[23112] amd64-sid: [3] >>>> /usr/sbin/proftpd(+0x1bf2f) [0x5559bc50df2f] >>>> 2017-12-27 21:51:07,529 amd64-sid proftpd[23112] amd64-sid: [4] >>>> /usr/sbin/proftpd(main+0x94b) [0x5559bc50ece3] >>>> 2017-12-27 21:51:07,529 amd64-sid proftpd[23112] amd64-sid: [5] >>>> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7fd99e0ff561] >>>> 2017-12-27 21:51:07,529 amd64-sid proftpd[23112] amd64-sid: [6] >>>> /usr/sbin/proftpd(_start+0x2a) [0x5559bc508daa] >>>> 2017-12-27 21:51:07,529 amd64-sid proftpd[23112] amd64-sid: -----END >>>> STACK TRACE----- >>>> >>>> Please install the binary, the stack trace should at least show us if >>>> the problematic code is in proftp or anywhere else. >>>> The addr2line directions in [1] did not help me, I always got "??:0". At >>>> least the stack trace should be a basis to issue a bug @upstream. >>>> >>>> Many thanks for help! >>>> >>>> Hilmar >>>> >>>> [1] http://www.proftpd.org/docs/howto/Compiling.html >>>> [2] https://freeshell.de/~hille42/proftpd/stacktrace/ >>> >> >> > -- #206401 http://counter.li.org
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