legacy consumer coredump on 0.8.6

[longtong]

Description

`Cannot access memory at address 0x7fc7f2532810
(gdb) bt
#0 0x00000000004f1d27 in rd_kafka_waitresp_find (rkb=0x6cfaf001) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:1274
#1 rd_kafka_req_response (rkb=0x6cfaf001) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:1301
#2 rd_kafka_recv (rkb=0x6cfaf001) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:1513
#3 0x00000000004f4b6c in rd_kafka_broker_fetch_toppars (arg=0x7fc7d5bd09e8) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:4011
#4 rd_kafka_broker_consumer_serve (arg=0x7fc7d5bd09e8) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:4089
#5 rd_kafka_broker_thread_main (arg=0x7fc7d5bd09e8) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:4154
#6 0x00000000004f5e37 in rd_kafka_q_enq (rkb=0x1, err=32711, reply=0x5448420, request=0x8d2d1b5, opaque=0x0) at thirdparty/librdkafka-0.8.6/src/rdkafka_int.h:846
#7 rd_kafka_q_enq (rkb=0x1, err=32711, reply=0x5448420, request=0x8d2d1b5, opaque=0x0) at thirdparty/librdkafka-0.8.6/src/rdkafka_int.h:851
#8 rd_kafka_broker_metadata_reply (rkb=0x1, err=32711, reply=0x5448420, request=0x8d2d1b5, opaque=0x0) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:1045
#9 0x00000000004f67e0 in rd_kafka_metadata_handle (rkb=0x257fb80, err=0, reply=0x4f4910, request=0x7fff2a936952, opaque=0x4efef2) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:865
#10 rd_kafka_broker_metadata_reply (rkb=0x257fb80, err=0, reply=0x4f4910, request=0x7fff2a936952, opaque=0x4efef2) at thirdparty/librdkafka-0.8.6/src/rdkafka_broker.c:1027
#11 0x00000000004f82ee in sink_peek (env=0x0, iov_in=0x257fb80, iov_in_len=2189, input_length=, iov_out=0x7fc7d5bd1440, iov_out_len=0x7fc7d5bd145c,

compressed_length=0x7fc7d5bd2700) at thirdparty/librdkafka-0.8.6/src/snappy.c:297

#12 compress (env=0x0, iov_in=0x257fb80, iov_in_len=2189, input_length=, iov_out=0x7fc7d5bd1440, iov_out_len=0x7fc7d5bd145c, compressed_length=0x7fc7d5bd2700)

at thirdparty/librdkafka-0.8.6/src/snappy.c:1356

#13 snappy_compress_iov (env=0x0, iov_in=0x257fb80, iov_in_len=2189, input_length=, iov_out=0x7fc7d5bd1440, iov_out_len=0x7fc7d5bd145c, compressed_length=0x7fc7d5bd2700)

at thirdparty/librdkafka-0.8.6/src/snappy.c:1398

#14 0x00007fc7f27829d1 in ?? ()
#15 0x00007fc7d5bd2700 in ?? ()
#16 0x0000000000000000 in ?? ()

(gdb) quit
`

How to reproduce

I create a kakfa-topic with 15 paritions, and start 15 consumer threads for consuming each parition, but sometimes the app cores, how could i fix this ? help~

rdkakfa version: 0.8.6

Checklist

Please provide the following information:

• librdkafka version (release number or git tag):
• Apache Kafka version:
• librdkafka client configuration:
• Operating system:
• Using the legacy Consumer
• Using the high-level KafkaConsumer
• Provide logs (with debug=.. as necessary) from librdkafka
• Provide broker log excerpts
• Critical issue

[edenhill]

Can you try the same on librdkafka version 0.9.1?