Details
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Bug
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Status: Closed (View Workflow)
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Blocker
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Resolution: Fixed
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10.6.0, 10.6.1
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None
Description
This is almost 100% reproducable crash on MariaDB server 10.6 as of 7e1ec1550ceff29a983bf799622d97b73b79ce43 compiled with -DWITH_URING=yes.
I run sysbench-tpcc (https://github.com/Percona-Lab/sysbench-tpcc) prepare on 40-core machine as
./tpcc.lua --mysql-host=yang04g --mysql-user=sbtest --mysql-password=sbtest --mysql-db=sbtest --time=1200 --threads=56 --report-interval=1 --tables=10 --scale=100 --use_fk=0 --mysql_table_options='DEFAULT CHARSET=utf8mb4' prepare
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against the similar 40-core machine with the mariadb server. After several minutes of the workload the server crashes.
Backtrace:
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10.6 7e1ec1550ceff29a983bf799622d97b73b79ce43 |
#0 0x00007f2e109d8aa1 in pthread_kill () from /lib64/libpthread.so.0
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#1 0x000055af0b0902c7 in my_write_core (sig=<optimized out>) at /root/krizhanovsky/server/mysys/stacktrace.c:424
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#2 0x000055af0abd3610 in handle_fatal_signal (sig=6) at /root/krizhanovsky/server/sql/signal_handler.cc:343
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#3 <signal handler called>
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#4 0x00007f2e10634387 in raise () from /lib64/libc.so.6
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#5 0x00007f2e10635a78 in abort () from /lib64/libc.so.6
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#6 0x000055af0a8da889 in ut_dbg_assertion_failed (expr=expr@entry=0x55af0b2a86a7 "cb->m_err == DB_SUCCESS",
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file=file@entry=0x55af0b2a8a10 "/root/krizhanovsky/server/storage/innobase/os/os0file.cc", line=line@entry=3843)
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at /root/krizhanovsky/server/storage/innobase/ut/ut0dbg.cc:60
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#7 0x000055af0a8c3fe0 in io_callback (cb=<optimized out>) at /root/krizhanovsky/server/storage/innobase/os/os0file.cc:3843
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#8 io_callback (cb=<optimized out>) at /root/krizhanovsky/server/storage/innobase/os/os0file.cc:3841
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#9 0x000055af0b035668 in tpool::task_group::execute (this=0x55af0c8f27d0, t=0x55af0c917c78) at /root/krizhanovsky/server/tpool/task_group.cc:55
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#10 0x000055af0b0345af in tpool::thread_pool_generic::worker_main (this=0x55af0c816320, thread_var=0x55af0c823fc0) at /root/krizhanovsky/server/tpool/tpool_generic.cc:550
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#11 0x000055af0b0f7cff in execute_native_thread_routine ()
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#12 0x00007f2e109d3ea5 in start_thread () from /lib64/libpthread.so.0
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#13 0x00007f2e106fc8dd in clone () from /lib64/libc.so.6
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Following patch
--- a/tpool/aio_liburing.cc
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+++ b/tpool/aio_liburing.cc
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@@ -152,6 +152,9 @@ class aio_uring final : public tpool::aio
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if (res < 0)
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{
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iocb->m_err= -res;
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+ my_printf_error(ER_UNKNOWN_ERROR,
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+ "io_uring_cqe_get_data() returned %d\n",
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+ ME_ERROR_LOG | ME_FATAL, res);
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iocb->m_ret_len= 0;
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}
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else |
produces line
2021-05-23 11:07:09 0 [ERROR] mariadbd: io_uring_cqe_get_data() returned -11
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in the error log.
Attachments
Issue Links
- is caused by
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MDEV-24883 add io_uring support for tpool
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- Closed
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