Bump github/codeql-action from 1 to 2#4
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Bumps [github/codeql-action](https://github.com/github/codeql-action) from 1 to 2. - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](github/codeql-action@v1...v2) --- updated-dependencies: - dependency-name: github/codeql-action dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>
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…is missed cases to redis-server. (redis#12322) Observed that the sanitizer reported memory leak as clean up is not done before the process termination in negative/following cases: **- when we passed '--invalid' as option to redis-server.** ``` -vm:~/mem-leak-issue/redis$ ./src/redis-server --invalid *** FATAL CONFIG FILE ERROR (Redis 255.255.255) *** Reading the configuration file, at line 2 >>> 'invalid' Bad directive or wrong number of arguments ================================================================= ==865778==ERROR: LeakSanitizer: detected memory leaks Direct leak of 8 byte(s) in 1 object(s) allocated from: #0 0x7f0985f65867 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x558ec86686ec in ztrymalloc_usable_internal /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:117 #2 0x558ec86686ec in ztrymalloc_usable /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:135 #3 0x558ec86686ec in ztryrealloc_usable_internal /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:276 #4 0x558ec86686ec in zrealloc /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:327 #5 0x558ec865dd7e in sdssplitargs /home/ubuntu/mem-leak-issue/redis/src/sds.c:1172 #6 0x558ec87a1be7 in loadServerConfigFromString /home/ubuntu/mem-leak-issue/redis/src/config.c:472 #7 0x558ec87a13b3 in loadServerConfig /home/ubuntu/mem-leak-issue/redis/src/config.c:718 #8 0x558ec85e6f15 in main /home/ubuntu/mem-leak-issue/redis/src/server.c:7258 #9 0x7f09856e5d8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58 SUMMARY: AddressSanitizer: 8 byte(s) leaked in 1 allocation(s). ``` **- when we pass '--port' as option and missed to add port number to redis-server.** ``` vm:~/mem-leak-issue/redis$ ./src/redis-server --port *** FATAL CONFIG FILE ERROR (Redis 255.255.255) *** Reading the configuration file, at line 2 >>> 'port' wrong number of arguments ================================================================= ==865846==ERROR: LeakSanitizer: detected memory leaks Direct leak of 8 byte(s) in 1 object(s) allocated from: #0 0x7fdcdbb1f867 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145 #1 0x557e8b04f6ec in ztrymalloc_usable_internal /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:117 #2 0x557e8b04f6ec in ztrymalloc_usable /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:135 #3 0x557e8b04f6ec in ztryrealloc_usable_internal /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:276 #4 0x557e8b04f6ec in zrealloc /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:327 #5 0x557e8b044d7e in sdssplitargs /home/ubuntu/mem-leak-issue/redis/src/sds.c:1172 #6 0x557e8b188be7 in loadServerConfigFromString /home/ubuntu/mem-leak-issue/redis/src/config.c:472 #7 0x557e8b1883b3 in loadServerConfig /home/ubuntu/mem-leak-issue/redis/src/config.c:718 #8 0x557e8afcdf15 in main /home/ubuntu/mem-leak-issue/redis/src/server.c:7258 #9 0x7fdcdb29fd8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58 Indirect leak of 10 byte(s) in 1 object(s) allocated from: #0 0x7fdcdbb1fc18 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164 #1 0x557e8b04f9aa in ztryrealloc_usable_internal /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:287 #2 0x557e8b04f9aa in ztryrealloc_usable /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:317 #3 0x557e8b04f9aa in zrealloc_usable /home/ubuntu/mem-leak-issue/redis/src/zmalloc.c:342 #4 0x557e8b033f90 in _sdsMakeRoomFor /home/ubuntu/mem-leak-issue/redis/src/sds.c:271 #5 0x557e8b033f90 in sdsMakeRoomFor /home/ubuntu/mem-leak-issue/redis/src/sds.c:295 #6 0x557e8b033f90 in sdscatlen /home/ubuntu/mem-leak-issue/redis/src/sds.c:486 #7 0x557e8b044e1f in sdssplitargs /home/ubuntu/mem-leak-issue/redis/src/sds.c:1165 #8 0x557e8b188be7 in loadServerConfigFromString /home/ubuntu/mem-leak-issue/redis/src/config.c:472 #9 0x557e8b1883b3 in loadServerConfig /home/ubuntu/mem-leak-issue/redis/src/config.c:718 #10 0x557e8afcdf15 in main /home/ubuntu/mem-leak-issue/redis/src/server.c:7258 #11 0x7fdcdb29fd8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58 SUMMARY: AddressSanitizer: 18 byte(s) leaked in 2 allocation(s). ``` As part analysis found that the sdsfreesplitres is not called when this condition checks are being hit. Output after the fix: ``` vm:~/mem-leak-issue/redis$ ./src/redis-server --invalid *** FATAL CONFIG FILE ERROR (Redis 255.255.255) *** Reading the configuration file, at line 2 >>> 'invalid' Bad directive or wrong number of arguments vm:~/mem-leak-issue/redis$ =========================================== vm:~/mem-leak-issue/redis$ ./src/redis-server --jdhg *** FATAL CONFIG FILE ERROR (Redis 255.255.255) *** Reading the configuration file, at line 2 >>> 'jdhg' Bad directive or wrong number of arguments --------------------------------------------------------------------------- vm:~/mem-leak-issue/redis$ ./src/redis-server --port *** FATAL CONFIG FILE ERROR (Redis 255.255.255) *** Reading the configuration file, at line 2 >>> 'port' wrong number of arguments ``` Co-authored-by: Oran Agra <oran@redislabs.com>
yossigo
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Apr 14, 2024
## Issues and solutions from redis#12817 1. Touch ProcessingEventsWhileBlocked and calling moduleCount() without GIL in afterSleep() - Introduced: Version: 7.0.0 PR: redis#9963 - Harm Level: Very High If the module thread calls `RM_Yield()` before the main thread enters afterSleep(), and modifies `ProcessingEventsWhileBlocked`(+1), it will cause the main thread to not wait for GIL, which can lead to all kinds of unforeseen problems, including memory data corruption. - Initial / Abandoned Solution: * Added `__thread` specifier for ProcessingEventsWhileBlocked. `ProcessingEventsWhileBlocked` is used to protect against nested event processing, but event processing in the main thread and module threads should be completely independent and unaffected, so it is safer to use TLS. * Adding a cached module count to keep track of the current number of modules, to avoid having to use `dictSize()`. - Related Warnings: ``` WARNING: ThreadSanitizer: data race (pid=1136) Write of size 4 at 0x0001045990c0 by thread T4 (mutexes: write M0): #0 processEventsWhileBlocked networking.c:4135 (redis-server:arm64+0x10006d124) #1 RM_Yield module.c:2410 (redis-server:arm64+0x10018b66c) #2 bg_call_worker <null>:83232836 (blockedclient.so:arm64+0x16a8) Previous read of size 4 at 0x0001045990c0 by main thread: #0 afterSleep server.c:1861 (redis-server:arm64+0x100024f98) #1 aeProcessEvents ae.c:408 (redis-server:arm64+0x10000fd64) #2 aeMain ae.c:496 (redis-server:arm64+0x100010f0c) #3 main server.c:7220 (redis-server:arm64+0x10003f38c) ``` 2. aeApiPoll() is not thread-safe When using RM_Yield to handle events in a module thread, if the main thread has not yet entered `afterSleep()`, both the module thread and the main thread may touch `server.el` at the same time. - Introduced: Version: 7.0.0 PR: redis#9963 - Old / Abandoned Solution: Adding a new mutex to protect timing between after beforeSleep() and before afterSleep(). Defect: If the main thread enters the ae loop without any IO events, it will wait until the next timeout or until there is any event again, and the module thread will always hang until the main thread leaves the event loop. - Related Warnings: ``` SUMMARY: ThreadSanitizer: data race ae_kqueue.c:55 in addEventMask ================== ================== WARNING: ThreadSanitizer: data race (pid=14682) Write of size 4 at 0x000100b54000 by thread T9 (mutexes: write M0): #0 aeApiPoll ae_kqueue.c:175 (redis-server:arm64+0x100010588) #1 aeProcessEvents ae.c:399 (redis-server:arm64+0x10000fb84) #2 processEventsWhileBlocked networking.c:4138 (redis-server:arm64+0x10006d3c4) #3 RM_Yield module.c:2410 (redis-server:arm64+0x10018b66c) #4 bg_call_worker <null>:16042052 (blockedclient.so:arm64+0x169c) Previous write of size 4 at 0x000100b54000 by main thread: #0 aeApiPoll ae_kqueue.c:175 (redis-server:arm64+0x100010588) #1 aeProcessEvents ae.c:399 (redis-server:arm64+0x10000fb84) #2 aeMain ae.c:496 (redis-server:arm64+0x100010da8) #3 main server.c:7238 (redis-server:arm64+0x10003f51c) ``` ## The final fix as the comments: redis#12817 (comment) Optimized solution based on the above comment: First, we add `module_gil_acquring` to indicate whether the main thread is currently in the acquiring GIL state. When the module thread starts to yield, there are two possibilities(we assume the caller keeps the GIL): 1. The main thread is in the mid of beforeSleep() and afterSleep(), that is, `module_gil_acquring` is not 1 now. At this point, the module thread will wake up the main thread through the pipe and leave the yield, waiting for the next yield when the main thread may already in the acquiring GIL state. 2. The main thread is in the acquiring GIL state. The module thread release the GIL, yielding CPU to give the main thread an opportunity to start event processing, and then acquire the GIL again until the main thread releases it. This is what redis#12817 (comment) mentioned direction. --------- Co-authored-by: Oran Agra <oran@redislabs.com>
yossigo
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Apr 14, 2024
fix some issues that come from sanitizer thread report.
1. when the main thread is updating daylight_active, other threads (bio,
module thread) may be writing logs at the same time.
```
WARNING: ThreadSanitizer: data race (pid=661064)
Read of size 4 at 0x55c9a4d11c70 by thread T2:
#0 serverLogRaw /home/sundb/data/redis_fork/src/server.c:116 (redis-server+0x8d797) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#1 _serverLog.constprop.2 /home/sundb/data/redis_fork/src/server.c:146 (redis-server+0x2a3b14) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#2 bioProcessBackgroundJobs /home/sundb/data/redis_fork/src/bio.c:329 (redis-server+0x1c24ca) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
Previous write of size 4 at 0x55c9a4d11c70 by main thread (mutexes: write M0, write M1, write M2, write M3):
#0 updateCachedTimeWithUs /home/sundb/data/redis_fork/src/server.c:1102 (redis-server+0x925e7) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#1 updateCachedTimeWithUs /home/sundb/data/redis_fork/src/server.c:1087 (redis-server+0x925e7)
#2 updateCachedTime /home/sundb/data/redis_fork/src/server.c:1118 (redis-server+0x925e7)
#3 afterSleep /home/sundb/data/redis_fork/src/server.c:1811 (redis-server+0x925e7)
#4 aeProcessEvents /home/sundb/data/redis_fork/src/ae.c:389 (redis-server+0x85ae0) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#5 aeProcessEvents /home/sundb/data/redis_fork/src/ae.c:342 (redis-server+0x85ae0)
#6 aeMain /home/sundb/data/redis_fork/src/ae.c:477 (redis-server+0x85ae0)
#7 main /home/sundb/data/redis_fork/src/server.c:7211 (redis-server+0x7168c) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
```
2. thread leaks in module tests
```
WARNING: ThreadSanitizer: thread leak (pid=668683)
Thread T13 (tid=670041, finished) created by main thread at:
#0 pthread_create ../../../../src/libsanitizer/tsan/tsan_interceptors_posix.cpp:1036 (libtsan.so.2+0x3d179) (BuildId: 28a9f70061dbb2dfa2cef661d3b23aff4ea13536)
#1 HelloBlockNoTracking_RedisCommand /home/sundb/data/redis_fork/tests/modules/blockonbackground.c:200 (blockonbackground.so+0x97fd) (BuildId: 9cd187906c57e88cdf896d121d1d96448b37a136)
#2 HelloBlockNoTracking_RedisCommand /home/sundb/data/redis_fork/tests/modules/blockonbackground.c:169 (blockonbackground.so+0x97fd)
#3 call /home/sundb/data/redis_fork/src/server.c:3546 (redis-server+0x9b7fb) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#4 processCommand /home/sundb/data/redis_fork/src/server.c:4176 (redis-server+0xa091c) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#5 processCommandAndResetClient /home/sundb/data/redis_fork/src/networking.c:2468 (redis-server+0xd2b8e) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#6 processInputBuffer /home/sundb/data/redis_fork/src/networking.c:2576 (redis-server+0xd2b8e)
#7 readQueryFromClient /home/sundb/data/redis_fork/src/networking.c:2722 (redis-server+0xd358f) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#8 callHandler /home/sundb/data/redis_fork/src/connhelpers.h:58 (redis-server+0x288a7b) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#9 connSocketEventHandler /home/sundb/data/redis_fork/src/socket.c:277 (redis-server+0x288a7b)
#10 aeProcessEvents /home/sundb/data/redis_fork/src/ae.c:417 (redis-server+0x85b45) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
#11 aeProcessEvents /home/sundb/data/redis_fork/src/ae.c:342 (redis-server+0x85b45)
#12 aeMain /home/sundb/data/redis_fork/src/ae.c:477 (redis-server+0x85b45)
#13 main /home/sundb/data/redis_fork/src/server.c:7211 (redis-server+0x7168c) (BuildId: dca0b1945ba30010e36129bdb296e488dd2b32d0)
```
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Bumps github/codeql-action from 1 to 2.
Changelog
Sourced from github/codeql-action's changelog.
Commits
3962f1bBump glob from 7.1.7 to 8.0.19daf1deUpdate references to release branchesbce749bImprove consistency of variable references in Bashfce4a01Update the major version tag within the release processbac9320Update description of "Tag release and merge back" workflowb3bf557Merge branch 'main' into henrymercer/handle-merge-conflicts-in-releasesf6312f1Commit any conflicts during v1 backport to simplify release processDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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