Date: Thu, 28 Jan 2016 17:10:57 +0300 From: Yury Efimochev <efimyury@gmail.com> To: freebsd-questions@freebsd.org Subject: malloc problems Message-ID: <87wpqtlrpq.fsf@gmail.com>
next in thread | raw e-mail | index | archive | help
Hi, After update from 9.2-RELEASE-p17 to 9.3-RELEASE-p24 on our production server our service started crashing with 'segmentation fault/bus error' on regular basis(roughly once a days). Investigation revealed that crashes were caused by the fact that under certain circumstances malloc may return pointer on same memory for multiple clients from different threads. We suggested that our problem caused by thread-specific cache, so we disabled it(by adding 'MALLOC_OPTIONS=7h' to our service environment). That fixed crashes, but caused 10-100 'std::bad_alloc' exceptions every day(no 'std::bad_alloc' exceptions before that for months). Does anyone faced similar issues? -- Best regards, Yury Efimochev
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?87wpqtlrpq.fsf>