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| author | Oran Agra <oran@redislabs.com> | 2020-07-29 17:05:14 +0300 |
|---|---|---|
| committer | Oran Agra <oran@redislabs.com> | 2020-08-06 16:47:27 +0300 |
| commit | 90b717e72340081ee87f0b85b4ef00b2a5bd2bf2 (patch) | |
| tree | 037ced676d6a553ae4bf1e8f61e74d0c6894cc49 /redis.conf | |
| parent | 24c539251f368fb597b660de179a10b2d1370ecb (diff) | |
| download | redis-90b717e72340081ee87f0b85b4ef00b2a5bd2bf2.tar.gz | |
Assertion and panic, print crash log without generating SIGSEGV
This makes it possible to add tests that generate assertions, and run
them with valgrind, making sure that there are no memory violations
prior to the assertion.
New config options:
- crash-log-enabled - can be disabled for cleaner core dumps
- crash-memcheck-enabled - useful for faster termination after a crash
- use-exit-on-panic - to be used by the test suite so that valgrind can
detect leaks and memory corruptions
Other changes:
- Crash log is printed even on system that dont HAVE_BACKTRACE, i.e. in
both SIGSEGV and assert / panic
- Assertion and panic won't print registers and code around EIP (which
was useless), but will do fast memory test (which may still indicate
that the assertion was due to memory corrpution)
I had to reshuffle code in order to re-use it, so i extracted come code
into function without actually doing any changes to the code:
- logServerInfo
- logModulesInfo
- doFastMemoryTest (with the exception of it being conditional)
- dumpCodeAroundEIP
changes to the crash report on segfault:
- logRegisters is called right after the stack trace (before info) done
just in order to have more re-usable code
- stack trace skips the first two items on the stack (the crash log and
signal handler functions)
Diffstat (limited to 'redis.conf')
| -rw-r--r-- | redis.conf | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/redis.conf b/redis.conf index d4e3e47f0..8440b4750 100644 --- a/redis.conf +++ b/redis.conf @@ -269,6 +269,16 @@ logfile "" # Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7. # syslog-facility local0 +# To disable the built in crash log, which will possibly produce cleaner core +# dumps when they are needed, uncomment the following: +# +# crash-log-enabled no + +# To disable the fast memory check that's run as part of the crash log, which +# will possibly let redis terminate sooner, uncomment the following: +# +# crash-memcheck-enabled no + # Set the number of databases. The default database is DB 0, you can select # a different one on a per-connection basis using SELECT <dbid> where # dbid is a number between 0 and 'databases'-1 |