- 28 Feb, 2023 1 commit
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Madelyn Olson authored
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- 12 Dec, 2022 2 commits
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Meir Shpilraien (Spielrein) authored
If Redis crashes due to calling an invalid function pointer, the `backtrace` function will try to dereference this invalid pointer which will cause a crash inside the crash report and will kill the processes without having all the crash report information. Example: ``` === REDIS BUG REPORT START: Cut & paste starting from here === 198672:M 19 Sep 2022 18:06:12.936 # Redis 255.255.255 crashed by signal: 11, si_code: 1 198672:M 19 Sep 2022 18:06:12.936 # Accessing address: 0x1 198672:M 19 Sep 2022 18:06:12.936 # Crashed running the instruction at: 0x1 // here the processes is crashing ``` This PR tries to fix this crash be: 1. Identify the issue when it happened. 2. Replace the invalid pointer with a pointer to some dummy function so that `backtrace` will not crash. I identification is done by comparing `eip` to `info->si_addr`, if they are the same we know that the crash happened on the same address it tries to accesses and we can conclude that it tries to call and invalid function pointer. To replace the invalid pointer we introduce a new function, `setMcontextEip`, which is very similar to `getMcontextEip` and it knows to set the Eip for the different supported OS's. After printing the trace we retrieve the old `Eip` value. (cherry picked from commit 0bf90d94)
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- 27 Apr, 2022 1 commit
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- 21 Jul, 2021 1 commit
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Oran Agra authored
- promote the code in DEBUG PROTOCOL to addReplyBigNum - DEBUG PROTOCOL ATTRIB skips the attribute when client is RESP2 - networking.c addReply for push and attributes generate assertion when called on a RESP2 client, anything else would produce a broken protocol that clients can't handle. (cherry picked from commit 6a5bac30)
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- 31 Mar, 2021 1 commit
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guybe7 authored
In case the module's digest function doesn't modify 'md' it'll contain garbage and result in wrong DEBUG DIGEST
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- 24 Mar, 2021 2 commits
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Itamar Haber authored
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Oran Agra authored
We sometimes see the crash report saying we were killed by a random process even in cases where the crash was spontanius in redis. for instance, crashes found by the corrupt-dump test. It looks like this si_pid is sometimes left uninitialized, and a good way to tell if the crash originated in redis or trigged by outside is to look at si_code, real signal codes are always > 0, and ones generated by kill are have si_code of 0 or below.
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- 17 Mar, 2021 1 commit
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Theo Buehler authored
Some operating systems (e.g., NetBSD and OpenBSD) have switched to using a 64-bit integer for time_t on all platforms. This results in currently harmless compiler warnings due to potential truncation. These changes fix these minor portability concerns. * Fix format string for systems with 64 bit time * use llabs to avoid truncation with 64 bit time
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- 01 Mar, 2021 1 commit
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David Gilman authored
The arm_thread_state64_get_pc used later in the file is defined in mach kernel headers. Apparently they get included if you use the system malloc but not if you use jemalloc.
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- 04 Jan, 2021 1 commit
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Itamar Haber authored
* man-like consistent long formatting * Uppercases commands, subcommands and options * Adds 'HELP' to HELP for all * Lexicographical order * Uses value notation and other .md likeness * Moves const char *help to top * Keeps it under 80 chars * Misc help typos, consistent conjuctioning (i.e return and not returns) * Uses addReplySubcommandSyntaxError(c) all over Signed-off-by:Itamar Haber <itamar@redislabs.com>
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- 01 Jan, 2021 1 commit
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Oran Agra authored
The crash log attempts to print the current client info, and when it does that it attempts to check if the first argument happens to be a key but it did so for commands with no arguments too, which caused the crash log to crash half way and not reach its end.
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- 24 Dec, 2020 1 commit
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Madelyn Olson authored
Properly throw errors for invalid replication stream and support https://github.com/redis/redis/pull/8217
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- 22 Dec, 2020 1 commit
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Meir Shpilraien (Spielrein) authored
Turns out that when the fork child crashes, the crash log was deleting the pidfile from the disk (although the parent is still running. Now we set the pidfile of the fork process to NULL so the fork process will never deletes it.
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- 13 Dec, 2020 1 commit
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Yossi Gottlieb authored
* Allow runtest-moduleapi use a different 'make', for systems where GNU Make is 'gmake'. * Fix issue with builds on Solaris re-building everything from scratch due to CFLAGS/LDFLAGS not stored. * Fix compile failure on Solaris due to atomicvar and a bunch of warnings. * Fix garbled log timestamps on Solaris.
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- 06 Dec, 2020 1 commit
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Oran Agra authored
The test creates keys with various encodings, DUMP them, corrupt the payload and RESTORES it. It utilizes the recently added use-exit-on-panic config to distinguish between asserts and segfaults. If the restore succeeds, it runs random commands on the key to attempt to trigger a crash. It runs in two modes, one with deep sanitation enabled and one without. In the first one we don't expect any assertions or segfaults, in the second one we expect assertions, but no segfaults. We also check for leaks and invalid reads using valgrind, and if we find them we print the commands that lead to that issue. Changes in the code (other than the test): - Replace a few NPD (null pointer deference) flows and division by zero with an assertion, so that it doesn't fail the test. (since we set the server to use `exit` rather than `abort` on assertion). - Fix quite a lot of flows in rdb.c that could have lead to memory leaks in RESTORE command (since it now responds with an error rather than panic) - Add a DEBUG flag for SET-SKIP-CHECKSUM-VALIDATION so that the test don't need to bother with faking a valid checksum - Remove a pile of code in serverLogObjectDebugInfo which is actually unsafe to run in the crash report (see comments in the code) - fix a missing boundary check in lzf_decompress test suite infra improvements: - be able to run valgrind checks before the process terminates - rotate log files when restarting servers
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- 25 Nov, 2020 1 commit
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David CARLIER authored
__ILP32__ is 32 bits ABI and does not imply x86, this patch resolves this.
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- 18 Nov, 2020 1 commit
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guybe7 authored
The bug was introduced by #5021 which only attempted avoid EXIST on an already expired key from returning 1 on a replica. Before that commit, dbExists was used instead of lookupKeyRead (which had an undesired effect to "touch" the LRU/LFU) Other than that, this commit fixes OBJECT to also come empty handed on expired keys in replica. And DEBUG DIGEST-VALUE to behave like DEBUG OBJECT (get the data from the key regardless of it's expired state)
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- 05 Nov, 2020 2 commits
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Wen Hui authored
* Debug Populate: Add checks for count and keysize to avoid crash * provide getRangeLongFromObjectOrReply and getPositiveLongFromObjectOrReply for range check
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Yossi Gottlieb authored
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- 03 Nov, 2020 1 commit
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Meir Shpilraien (Spielrein) authored
The reason that we want to get a full crash report on SIGABRT is that the jmalloc, when detecting a corruption, calls abort(). This will cause the Redis to exist silently without any report and without any way to analyze what happened.
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- 07 Oct, 2020 1 commit
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Oran Agra authored
- si_code can be very useful info some day. - a clear indication that redis was killed by an external user
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- 23 Sep, 2020 1 commit
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David CARLIER authored
mainly backtrace and register dump support.
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- 20 Sep, 2020 1 commit
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Daniel Dai authored
Co-authored-by:Oran Agra <oran@redislabs.com>
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- 19 Sep, 2020 1 commit
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David CARLIER authored
The symbol base address is a const on this system.
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- 16 Sep, 2020 2 commits
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WuYunlong authored
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WuYunlong authored
If one thread got SIGSEGV, function sigsegvHandler() would be triggered, it would call bioKillThreads(). But call pthread_cancel() to cancel itself would make it block. Also note that if SIGSEGV is caught by bio thread, it should kill the main thread in order to give a positive report.
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- 10 Sep, 2020 1 commit
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Oran Agra authored
List of squashed commits or PRs =============================== commit 66801ea Author: hwware <wen.hui.ware@gmail.com> Date: Mon Jan 13 00:54:31 2020 -0500 typo fix in acl.c commit 46f55db Author: Itamar Haber <itamar@redislabs.com> Date: Sun Sep 6 18:24:11 2020 +0300 Updates a couple of comments Specifically: * RM_AutoMemory completed instead of pointing to docs * Updated link to custom type doc commit 61a2aa0 Author: xindoo <xindoo@qq.com> Date: Tue Sep 1 19:24:59 2020 +0800 Correct errors in code comments commit a5871d1 Author: yz1509 <pro-756@qq.com> Date: Tue Sep 1 18:36:06 2020 +0800 fix typos in module.c commit 41eede7 Author: bookug <bookug@qq.com> Date: Sat Aug 15 01:11:33 2020 +0800 docs: fix typos in comments commit c303c84 Author: lazy-snail <ws.niu@outlook.com> Date: Fri Aug 7 11:15:44 2020 +0800 fix spelling in redis.conf commit 1e...
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- 09 Sep, 2020 1 commit
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Yossi Gottlieb authored
This is a catch-all test to confirm that that rewrite produces a valid output for all parameters and that this process does not introduce undesired configuration changes.
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- 03 Sep, 2020 1 commit
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Oran Agra authored
During long running scripts or loading RDB/AOF, we may need to do some defragging. Since processEventsWhileBlocked is called periodically at unknown intervals, and many cron jobs either depend on run_with_period (including active defrag), or rely on being called at server.hz rate (i.e. active defrag knows ho much time to run by looking at server.hz), the whileBlockedCron may have to run a loop triggering the cron jobs in it (currently only active defrag) several times. Other changes: - Adding a test for defrag during aof loading. - Changing key-load-delay config to take negative values for fractions of a microsecond sleep
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- 02 Sep, 2020 1 commit
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Pierre Jambet authored
DEBUG ZIPLIST <key> currently returns the following error string if the key is not a ziplist: "ERR Not an sds encoded string.". This looks like an accidental copy/paste error from the error returned in the else if branch above where this string is returned if the key is not an sds string. The command was added in ac61f906 and looking at the commit, nothing indicates that it is not an accidental typo. The error string now returns a correct error: "Not a ziplist encoded object", which accurately describes the error.
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- 24 Aug, 2020 1 commit
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Wang Yuan authored
The previous fix using _Atomic was insufficient, since we check and set it in different places. The implications of this bug are just that a portion of the bug report will be shown twice, in the race case of two concurrent crashes.
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- 06 Aug, 2020 2 commits
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Oran Agra authored
this race would only happen when two threads paniced at the same time, and even then the only consequence is some extra log lines. race reported in #7391
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Oran Agra authored
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)
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- 28 Jul, 2020 1 commit
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Wen Hui authored
valsize was not modified during the for loop below instead of getting from c->argv[4], therefore there is no need to put inside the for loop.. Moreover, putting the check outside loop will also avoid memory leaking, decrRefCount(key) should be called in the original code if we put the check in for loop
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- 15 Jul, 2020 1 commit
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Developer-Ecosystem-Engineering authored
Export following environment variables before building on macOS on Apple silicon export ARCH_FLAGS="-arch arm64" export SDK_NAME=macosx export SDK_PATH=$(xcrun --show-sdk-path --sdk $SDK_NAME) export CFLAGS="$ARCH_FLAGS -isysroot $SDK_PATH -I$SDK_PATH/usr/include" export CXXFLAGS=$CFLAGS export LDFLAGS="$ARCH_FLAGS" export CC="$(xcrun -sdk $SDK_PATH --find clang) $CFLAGS" export CXX="$(xcrun -sdk $SDK_PATH --find clang++) $CXXFLAGS" export LD="$(xcrun -sdk $SDK_PATH --find ld) $LDFLAGS" make make test .. All tests passed without errors! Backtrack logging assumes x86 and required updating
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- 10 Jul, 2020 2 commits
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Oran Agra authored
* tests/valgrind: don't use debug restart DEBUG REATART causes two issues: 1. it uses execve which replaces the original process and valgrind doesn't have a chance to check for errors, so leaks go unreported. 2. valgrind report invalid calls to close() which we're unable to resolve. So now the tests use restart_server mechanism in the tests, that terminates the old server and starts a new one, new PID, but same stdout, stderr. since the stderr can contain two or more valgrind report, it is not enough to just check for the absence of leaks, we also need to check for some known errors, we do both, and fail if we either find an error, or can't find a report saying there are no leaks. other changes: - when killing a server that was already terminated we check for leaks too. - adding DEBUG LEAK which was used to test it. - adding --trace-children to valgrind, although no longer needed. - since the stdout contains two or more runs, we need slightly different way of checking if the new process is up (explicitly looking for the new PID) - move the code that handles --wait-server to happen earlier (before watching the startup message in the log), and serve the restarted server too. * squashme - CR fixes
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Oran Agra authored
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- 20 May, 2020 1 commit
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Oran Agra authored
also support: debug mallctl-str thread.tcache.flush VOID
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- 04 May, 2020 1 commit
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Oran Agra authored
* fix memlry leaks with diskless replica short read. * fix a few timing issues with valgrind runs * fix issue with valgrind and watchdog schedule signal about the valgrind WD issue: the stack trace test in logging.tcl, has issues with valgrind: ==28808== Can't extend stack to 0x1ffeffdb38 during signal delivery for thread 1: ==28808== too small or bad protection modes it seems to be some valgrind bug with SA_ONSTACK. SA_ONSTACK seems unneeded since WD is not recursive (SA_NODEFER was removed), also, not sure if it's even valid without a call to sigaltstack()
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