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AMR Encoder Getting stuck in e9_ownSearchOptimalPulsePos_M122_GSMAMR_16s_optSSE


Our software which has Intel IPP library randomly goes to hung state when AMR packets are being encoded.

Since it was hanged, our software watchdog was not creating any gdb cores and the it was randomly getting restarted.

We had added a special condition in the watchdog for this kind of scenario to dump gdb core.

While analyzing the gdb core, we found that it got stuck in below code.


#0  0x00007fd7f3644b81 in e9_ownSearchOptimalPulsePos_M122_GSMAMR_16s_optSSE () from /opt/AVPOP/hbmr/1.12.0-45/lib/

#1  0x00007fd7f357964b in e9_ippsAlgebraicCodebookSearch_GSMAMR_16s () from /opt/AVPOP/hbmr/1.12.0-45/lib/

#2  0x00007fd7f32d3178 in ownEncode_GSMAMR () from /opt/AVPOP/hbmr/1.12.0-45/lib/

#3  0x00007fd7f32d3cf2 in apiGSMAMREncode () from /opt/AVPOP/hbmr/1.12.0-45/lib/

#4  0x00007fd7f32cf047 in Encode () from /opt/AVPOP/hbmr/1.12.0-45/lib/

#5  0x00007fd7f3003e41 in ipp_amr_encode_frame (avctx=0x7fd7ac001de0, avpkt=0x7fd7df5fd4c0, frame=0x7fd7df5fd2c0,


Please note that this issue is already raised elsewhere in the forum.

Please find the CPU information of crashed machine.

processor  : 0

vendor_id  : GenuineIntel

cpu family : 6

model      : 45

model name : Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz

stepping   : 7

microcode  : 1808

cpu MHz         : 2600.000

cache size : 20480 KB

physical id     : 0

siblings   : 16

core id         : 0

cpu cores  : 8

apicid          : 0

initial apicid  : 0

fpu        : yes

fpu_exception   : yes

cpuid level     : 13

wp         : yes

flags      : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid

bogomips   : 5187.53

clflush size    : 64

cache_alignment : 64

address sizes   : 46 bits physical, 48 bits virtual

power management:

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IPP speech codecs were deprecated stopped to support in 2015 year:

Unfortunately we do not support this algorithms any more.


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