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[109.252.76.192]) by smtp.gmail.com with ESMTPSA id h25sm255046lfj.81.2019.09.04.23.12.55 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Sep 2019 23:12:56 -0700 (PDT) Date: Thu, 5 Sep 2019 09:12:51 +0300 From: Vladimir Zakharov To: freebsd-current@freebsd.org Subject: ntpd segfaults on start Message-ID: <20190905061251.rrip6635ebbfimsv@vzakharov> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="lpjeugckslqkz764" Content-Disposition: inline X-Operating-System: FreeBSD 13.0-CURRENT amd64 User-Agent: NeoMutt/20180716 X-Rspamd-Queue-Id: 46P9NC4lncz4JBs X-Spamd-Bar: ----- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=ZXZCEF16; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of zakharovvv@gmail.com designates 2a00:1450:4864:20::242 as permitted sender) smtp.mailfrom=zakharovvv@gmail.com X-Spamd-Result: default: False [-5.58 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; NEURAL_HAM_SHORT(-0.98)[-0.984,0]; SIGNED_PGP(-2.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[192.76.252.109.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.11]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; TAGGED_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; IP_SCORE_FREEMAIL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; IP_SCORE(0.00)[ip: (3.13), ipnet: 2a00:1450::/32(-2.98), asn: 15169(-2.28), country: US(-0.05)]; RCVD_IN_DNSWL_NONE(0.00)[2.4.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; MID_RHS_NOT_FQDN(0.50)[]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Sep 2019 06:13:00 -0000 --lpjeugckslqkz764 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Hello! Accidentally it turned out that the ntpd does not start on boot. Logs show that it core dumps: 2019-09-05T08:38:43.588563+03:00 vzakharov ntpd 34934 - - ntpd 4.2.8p12-a (1): Starting 2019-09-05T08:38:43.588717+03:00 vzakharov kernel - - - Security policy loaded: MAC/ntpd (mac_ntpd) 2019-09-05T08:38:43.718356+03:00 vzakharov kernel - - - pid 35074 (ntpd), jid 0, uid 123: exited on signal 11 Not sure how long does it happen. ktrace and gdb points to `setrlimit` call. Clean rebuild has no effect. Does anyone have any idea what the problem could be? root@vzakharov:~ # uname -a FreeBSD vzakharov 13.0-CURRENT FreeBSD 13.0-CURRENT r351834 GENERIC-NODEBUG amd64 root@vzakharov:~ # ktrace -i sudo -u ntpd `which ntpd` root@vzakharov:~ # kdump | tail -n 20 29735 ntpd CALL dup2(0,0x2) 29735 ntpd RET dup2 2 29735 ntpd CALL socket(PF_LOCAL,0x10000002,0) 29735 ntpd RET socket 3 29735 ntpd CALL connect(0x3,0x7fffff924f98,0x6a) 29735 ntpd STRU struct sockaddr { AF_LOCAL, /var/run/logpriv } 29735 ntpd NAMI "/var/run/logpriv" 29735 ntpd RET connect -1 errno 13 Permission denied 29735 ntpd CALL connect(0x3,0x7fffff924f98,0x6a) 29735 ntpd STRU struct sockaddr { AF_LOCAL, /var/run/log } 29735 ntpd NAMI "/var/run/log" 29735 ntpd RET connect 0 29735 ntpd CALL setsid 29735 ntpd RET setsid 29735/0x7427 29735 ntpd CALL getrlimit(RLIMIT_STACK,0x7fffff9250a0) 29735 ntpd RET getrlimit 0 29735 ntpd CALL setrlimit(RLIMIT_STACK,0x7fffff9250a0) 29735 ntpd RET setrlimit 0 29735 ntpd PSIG SIGSEGV SIG_DFL code=SEGV_ACCERR 29735 ntpd NAMI "ntpd.core" root@vzakharov:~ # ntpd root@vzakharov:~ # gdb -c ntpd.core `which ntpd` GNU gdb (GDB) 8.3 [GDB v8.3 for FreeBSD] [...] Reading symbols from /usr/sbin/ntpd... Reading symbols from /usr/lib/debug//usr/sbin/ntpd.debug... [New LWP 100946] Core was generated by `ntpd'. Program terminated with signal SIGSEGV, Segmentation fault. #0 setrlimit () at setrlimit.S:4 4 RSYSCALL(setrlimit) (gdb) bt #0 setrlimit () at setrlimit.S:4 Backtrace stopped: Cannot access memory at address 0x7fffff3ce7c8 (gdb) quit # cat /etc/src.conf WITHOUT_ACCT= WITHOUT_AMD= WITHOUT_APM= WITHOUT_ATM= WITHOUT_AUTHPF= WITHOUT_BLACKLIST= WITHOUT_BLUETOOTH= WITHOUT_BOOTPARAMD= WITHOUT_BOOTPD= WITHOUT_BSNMP= WITHOUT_CCD= WITHOUT_CROSS_COMPILER= WITHOUT_CUSE= WITHOUT_CXGBETOOL= # WITHOUT_DEBUG_FILES= WITHOUT_EE= WITHOUT_FDT= WITHOUT_FINGER= WITHOUT_FLOPPY= WITHOUT_FREEBSD_UPDATE= WITHOUT_FTP= WITHOUT_GDB= WITHOUT_GNU_DIFF= WITHOUT_GNU_GREP= WITHOUT_GNU_GREP_COMPAT= WITHOUT_GPIO= WITHOUT_HAST= WITHOUT_HTML= WITHOUT_HYPERV= WITHOUT_IPFILTER= WITHOUT_ISCSI= WITHOUT_KVM= WITHOUT_LEGACY_CONSOLE= WITHOUT_LIB32= WITHOUT_LLVM_TARGET_ALL= WITHOUT_LPR= WITHOUT_MLX5TOOL= WITHOUT_NDIS= WITHOUT_NVME= WITHOUT_PC_SYSINSTALL= WITHOUT_PF= WITHOUT_PMC= WITHOUT_PPP= WITHOUT_QUOTAS= WITHOUT_RADIUS_SUPPORT= WITHOUT_RBOOTD= WITHOUT_SHAREDOCS= WITHOUT_TALK= WITHOUT_TELNET= WITHOUT_TESTS= WITHOUT_TFTP= WITHOUT_TIMED= WITH_BSD_GREP= WITH_CCACHE_BUILD= # WITH_CLANG_EXTRAS= # WITH_CTF= # WITH_RATELIMIT= WITH_SORT_THREADS= WITH_SVN= BOOTSTRAP_ALL_TOOLS= -- Regards, | "In theory there is no difference between theory Vladimir Zakharov | and practice. 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