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Cisco Bug: CSCuo41138 - TFTP service crashes generating core dump

Last Modified

Jan 23, 2019

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

8.6(2.10000.30) 9.1(2.10000.28)

Description (partial)

Symptom:
TFTP service restarts. Alarm for core dump file generated.

'utils core analyze' from the CLI shows a backtrace similar to the following:

====================================
 backtrace
 ===================================
 #0  0x08804ff2 in SdlProcessId::processName() const ()
#1  0x08833ceb in SdlTraceLine::formatPID(SdlProcessId const&) ()
#2  0x08834647 in SdlTraceLine::beginTraceLineDefinition(bool, char const*, char const*, char const*, SdlProcessId const&, SdlProcessId const&, SdlSignalTagBase const&, SdlTraceLine::LineType) ()
#3  0x08822fe7 in SdlSystemLog::sdlErrorTrace(char*, SdlSignal*, char*) ()
#4  0x087ff916 in SdlProcessBase::prepareSignal(SdlSignal&, SignalPriority const&, SdlProcessId const&) ()
#5  0x087ff1a5 in SdlProcessBase::output(SdlSignal&, SdlProcessId const&, SignalPriority) ()
#6  0x081b027f in Cluster::sendSearchReq(SearchReq&, SdlProcessId const&) ()
#7  0x081b0e0d in Cluster::recvSearchRsp(SearchRsp&) ()
#8  0x081b375f in Cluster::wait_SearchRsp(SdlSignal&) ()
#9  0x081b3c74 in Cluster::fireSignal(SdlSignal&) ()
#10 0x088013e5 in SdlProcessBase::inputSignal(SdlSignal*, SdlSystemLog::SignalTraceType, int, int, int, int, int, int) ()
#11 0x08806634 in SdlRouter::callProcess(SdlSignal*, bool&, SdlSystemLog::SignalTraceType, int, int, int, int, int, int) ()
#12 0x088068f8 in SdlRouter::scheduler() ()
#13 0x08806d6f in SdlRouter::schedulerInit(SdlRouter*) ()
#14 0x001696e1 in start_thread () from /lib/libpthread.so.0
#15 0x00e7fd3e in clone () from /lib/libc.so.6

The critical part is:
 #0  0x08804ff2 in SdlProcessId::processName() const ()
#1  0x08833ceb in SdlTraceLine::formatPID(SdlProcessId const&) ()

ctftp is crashing attempting to obtain and print a PID from memory. This happens because memory at this address is overwritten.

Conditions:
* CUCM  and ctftp process crashing. TFTP process activated and running.

Related Community Discussions

CUCM の Cisco TFTP サービスがクラッシュして再起動する
2015年1月14日(初版)   TAC SR Collection 主な問題 Cisco Unified Communications Manager (CUCM) の Cisco TFTP | サービスがクラッシュして再起動する問題が報告されています。この問題はバージョン 9.1.2 以降で発生する可能性があります。 utils core analyze コマンドで生成されたコアファイルを解析すると、下記のようなバックトレースが出力されます。 ==================================== | backtrace =================================== #0 0x08804ff2 in SdlProcessId::processName() const () #1 0x08833ceb in SdlTraceLine::formatPID(SdlProcessId const&) () #2 0x08834647 in SdlTraceLine::beginTraceLineDefinition(bool, char ...
Latest activity: Jan 14, 2015
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  • Full Description (including symptoms, conditions and workarounds)
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