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pespin gerrit-no-reply at lists.osmocom.orgpespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-bsc/+/21346 ) Change subject: ipaccess-proxy: generate coredump and exit upon SIGABRT received ...................................................................... ipaccess-proxy: generate coredump and exit upon SIGABRT received Previous code relied on abort() switching sigaction to SIG_FDL + retriggering SIGABRT in case the signal handler returns, which would then generate the coredump + terminate the process. However, if a SIGABRT is received from somewhere else (kill -SIGABRT), then the process would print the talloc report and continue running, which is not desired. Change-Id: Iff920ff3dbeb48bd871b7578470f27fe9d0f9516 Fixes: OS#4865 --- M src/ipaccess/ipaccess-proxy.c 1 file changed, 13 insertions(+), 5 deletions(-) Approvals: pespin: Looks good to me, approved Jenkins Builder: Verified diff --git a/src/ipaccess/ipaccess-proxy.c b/src/ipaccess/ipaccess-proxy.c index 47465b4..d676038 100644 --- a/src/ipaccess/ipaccess-proxy.c +++ b/src/ipaccess/ipaccess-proxy.c @@ -1086,14 +1086,22 @@ return ret; } -static void signal_handler(int signal) +static void signal_handler(int signum) { - fprintf(stdout, "signal %u received\n", signal); + fprintf(stdout, "signal %u received\n", signum); - switch (signal) { + switch (signum) { case SIGABRT: - /* in case of abort, we want to obtain a talloc report - * and then return to the caller, who will abort the process */ + /* in case of abort, we want to obtain a talloc report and + * then run default SIGABRT handler, who will generate coredump + * and abort the process. abort() should do this for us after we + * return, but program wouldn't exit if an external SIGABRT is + * received. + */ + talloc_report_full(tall_bsc_ctx, stderr); + signal(SIGABRT, SIG_DFL); + raise(SIGABRT); + break; case SIGUSR1: talloc_report_full(tall_bsc_ctx, stderr); break; -- To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/21346 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-Change-Id: Iff920ff3dbeb48bd871b7578470f27fe9d0f9516 Gerrit-Change-Number: 21346 Gerrit-PatchSet: 3 Gerrit-Owner: pespin <pespin at sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: pespin <pespin at sysmocom.de> Gerrit-MessageType: merged -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20201130/a5530cd5/attachment.htm>