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Dec 14, 2021 at 06:25 PM

7.9.10.005 crashed with SIGSEGV

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Since at latest Version 7.9. MaxDB seems to be very very stable -- nevertheless our productive DB crashed today like that:

2021-11-21 16:32:20     RTEKernel     14:  Kernel version: Kernel    7.9.10   Build 005-123-267-563
2021-11-21 16:32:20 RTEKernel 15: Runtime version: U64/LIX86 7.9.10 Build 005-123-267-563
2021-11-21 16:32:20 RTEKernel 130: OS: Linux 5.3.18-22-default #1 SMP Wed Jun 3 12:16:43 UTC 2020 (720aeba)
[...] Thread 0x4460 Task 100 2021-12-14 10:56:41 ERR SAPDBMem 3: trace message of SAPDBMem_RawAllocator SessionContext 100:SessionContext 100 : allocator pointer in chunk header overwritten,_FILE=SAPDBMem_RawAllocator-k+noPIC.cpp,_LINE=1336
Thread 0x4460 Task 100 2021-12-14 10:56:41 ERR SAPDBMem 3: trace message of SAPDBMem_RawAllocator SessionContext 100:chunk : 7fef1b536590,_FILE=SAPDBMem_RawAllocator-k+noPIC.cpp,_LINE=1336
Thread 0x4460 Task 100 2021-12-14 10:56:41 ERR MsgOutput 54000: dumping chunk 0x7fef1b4e1000, size is 1048575 into sdbdiag-Heap20211214105641578033.dmp,_FILE=SAPDBMem_RawAllocator-k+noPIC.cpp,_LINE=189
Thread 0x4460 Task 100 2021-12-14 10:56:41 ERR MsgOutput 54000: chunk header has been overwritten,_FILE=SAPDBMem_RawAllocator-k+noPIC.cpp,_LINE=189
Thread 0x4460 Task 100 2021-12-14 10:56:41 ERR RTEKernel 91: vabort: Emergency Shutdown,_FILE=RTE_Crash+noPIC.cpp,_LINE=99
Thread 0x4460 Task 100 2021-12-14 10:56:42 RunTime 3: State changed from ONLINE to ABORT
Thread 0x4460 Task - 2021-12-14 10:56:42 RTEKernel 60: Kernel aborts
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: ----> Emergency stack backtrace <----
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Using 'backtrace' for stack tracing
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (0):0x000000000157e06a
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (1):0x00000000013be286
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (2):0x00000000015e9954
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (3):0x00000000015ab89d
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (4):0x00000000015af319
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (5):0x00000000012f3fa5
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (6):0x00000000012f448f
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (7):0x00000000012f46f1
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (8):0x0000000001374bb8
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (9):0x0000000001571f77
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (10):0x000000000156ffec
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: (11):0x00007ff3c6491d80
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: ----> Symbolic stack backtrace <----
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: 0: RTEDiag_CallStack::TraceStackSymbolic(RTEDiag_RegisterSet const*) + 0x3d
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Symbol: _ZN17RTEDiag_CallStack18TraceStackSymbolicEPK19RTEDiag_RegisterSet
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: SFrame: IP: 0x000000000157df6d (0x000000000157df30+0x3d)
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Module: /opt/sdb/MaxDB-7.9/pgm/kernel
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: -----------------------------------------
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: 1: RTEKernel_CrashHandler::AbortHandler(RTEDiag_FaultDescriptor*, void*) + 0x1c5
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Symbol: _ZN22RTEKernel_CrashHandler12AbortHandlerEP23RTEDiag_FaultDescriptorPv
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: SFrame: IP: 0x00000000013be295 (0x00000000013be0d0+0x1c5)
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Module: /opt/sdb/MaxDB-7.9/pgm/kernel
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: -----------------------------------------
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: 2: RTE_Crash(Msg_List const&) + 0x214
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Symbol: _Z9RTE_CrashRK8Msg_List
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: SFrame: IP: 0x00000000015e9954 (0x00000000015e9740+0x214)
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Module: /opt/sdb/MaxDB-7.9/pgm/kernel
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: -----------------------------------------
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: 3: SAPDBMem_RawAllocator::Crash(char const*) + 0x13d
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Symbol: _ZN21SAPDBMem_RawAllocator5CrashEPKc
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: SFrame: IP: 0x00000000015ab89d (0x00000000015ab760+0x13d)
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: Module: /opt/sdb/MaxDB-7.9/pgm/kernel
Thread 0x4460 Task - 2021-12-14 10:56:42 ERR DIAG 0: -----------------------------------------
[...]
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: ----> Emergency stack backtrace <----
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (0):0x00007ff3c754e2d0
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (1):0x000000000116bea0
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (2):0x000000000046ec8f
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (3):0x000000000046efb9
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (4):0x00000000013b5d09
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (5):0x00000000013b6825
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (6):0x00000000013b69e9
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (7):0x00000000013bb8db
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (8):0x00000000013bba33
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (9):0x00000000013be223
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (10):0x00000000015e9954
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (11):0x00000000015ab89d
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (12):0x00000000015af319
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (13):0x00000000012f3fa5
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (14):0x00000000012f448f
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (15):0x00000000012f46f1
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (16):0x0000000001374bb8
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (17):0x0000000001571f77
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (18):0x000000000156ffec
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: (19):0x00007ff3c6491d80
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: ----> Dump of siginfo contents <----
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: signal: 11(SIGSEGV)
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: code: 1(SEGV_MAPERR: address not mapped to object)
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: errno: 0
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: value(int): 0(0x0)
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: value(ptr): (nil)
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: pid: 7996
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: addr: 0x1f3c
Thread 0x4460 Task - 2021-12-14 10:56:43 ERR DIAG 0: ----> Register Dump <----
[...]

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