"xferquota" system test fails intermittently
An interesting crash was triggered for main
1 under TSAN:
https://gitlab.isc.org/isc-projects/bind9/-/jobs/2459947
The test failed because a crash happened:
D:xferquota:#4 0x00007f77159655ce in isc_assertion_failed (file=0x2 <error: Cannot access memory at address 0x2>, line=198882080, line@entry=506, type=isc_assertiontype_require, type@entry=isc_assertiontype_insist, cond=0x7f7714c5ace1 <__GI_raise+321> "H\213\204$\b\001") at assertions.c:49
D:xferquota:#5 0x00007f77156bf440 in udp_recv (handle=handle@entry=0x7b4800019b00, eresult=eresult@entry=ISC_R_SUCCESS, region=region@entry=0x7f770bdabc18, arg=<optimized out>) at dispatch.c:506
D:xferquota:#6 0x00007f771594cade in isc__nm_async_readcb (worker=<optimized out>, ev0=ev0@entry=0x7f770bdabc78) at netmgr/netmgr.c:2702
D:xferquota:#7 0x00007f771594ac73 in isc__nm_readcb (sock=sock@entry=0x7b74000bfe00, uvreq=uvreq@entry=0x7b6c00070000, eresult=eresult@entry=ISC_R_SUCCESS) at netmgr/netmgr.c:2675
D:xferquota:#8 0x00007f77159612eb in udp_recv_cb (handle=handle@entry=0x7b74000c03c8, nrecv=nrecv@entry=36, buf=buf@entry=0x7f770bdabe40, addr=addr@entry=0x7f770bdabe90, flags=flags@entry=0) at netmgr/udp.c:647
D:xferquota:#9 0x00007f7715962c6c in isc__nm_udp_read_cb (handle=0x7b74000c03c8, nrecv=36, buf=0x7f770bdabe40, addr=0x7f770bdabe90, flags=0) at netmgr/udp.c:1053
D:xferquota:#10 0x00007f77151aa3f1 in uv__udp_recvmsg (handle=0x7b74000c03c8) at /usr/src/libuv-v1.43.0/src/unix/udp.c:302
D:xferquota:#11 0x00007f77151a9d30 in uv__udp_io (loop=0x7ba00000a540, w=0x7b74000c0448, revents=1) at /usr/src/libuv-v1.43.0/src/unix/udp.c:178
D:xferquota:#12 0x00007f77151b0b87 in uv__io_poll (loop=0x7ba00000a540, timeout=14836) at /usr/src/libuv-v1.43.0/src/unix/epoll.c:374
D:xferquota:#13 0x00007f771519586c in uv_run (loop=0x7ba00000a540, mode=UV_RUN_DEFAULT) at /usr/src/libuv-v1.43.0/src/unix/core.c:389
D:xferquota:#14 0x00007f77159410de in nm_thread (worker0=0x7ba00000a530) at netmgr/netmgr.c:654
The crash happens here:
496 if (eresult != ISC_R_SUCCESS) {
497 /*
498 * This is most likely a network error on a connected
499 * socket, a timeout, or the query has been canceled.
500 * It makes no sense to check the address or parse the
501 * packet, but we can return the error to the caller.
502 */
503 goto done;
504 }
505
506 >>> INSIST(ISC_LINK_LINKED(resp, alink));
507
508 peer = isc_nmhandle_peeraddr(handle);
509 isc_netaddr_fromsockaddr(&netaddr, &peer);
However, note that zone transfers seem to have become stuck shortly after startup:
I:xferquota:starting servers
I:xferquota:Have 50 zones up in 1 seconds
I:xferquota:Changing test zone...
I:xferquota:Have 54 zones up in 2 seconds
I:xferquota:Have 54 zones up in 3 seconds
I:xferquota:Have 54 zones up in 4 seconds
I:xferquota:Have 54 zones up in 5 seconds
I:xferquota:Have 54 zones up in 6 seconds
I:xferquota:Have 54 zones up in 7 seconds
I:xferquota:Have 54 zones up in 8 seconds
I:xferquota:Have 54 zones up in 9 seconds
I:xferquota:Have 54 zones up in 10 seconds
...
I:xferquota:Have 54 zones up in 357 seconds
I:xferquota:Have 54 zones up in 358 seconds
I:xferquota:Have 54 zones up in 359 seconds
I:xferquota:Took too long to load zones
The crash itself seems to have happened during a shutdown attempt:
I:xferquota:Took too long to load zones
I:xferquota:stopping servers
I:xferquota:ns1 died before a SIGTERM was sent
I:xferquota:ns1 didn't die when sent a SIGTERM
I:xferquota:stopping servers failed
I:xferquota:Core dump(s) found: xferquota/ns1/core.30627
Click to expand/collapse full test log
S:xferquota:2022-04-22T09:44:23+0000
T:xferquota:1:A
A:xferquota:System test xferquota
I:xferquota:PORTS:32124,32125,32126,32127,32128,32129,32130,32131,32132,32133,32134,32135,32136
I:xferquota:starting servers
I:xferquota:Have 50 zones up in 1 seconds
I:xferquota:Changing test zone...
I:xferquota:Have 54 zones up in 2 seconds
I:xferquota:Have 54 zones up in 3 seconds
I:xferquota:Have 54 zones up in 4 seconds
I:xferquota:Have 54 zones up in 5 seconds
I:xferquota:Have 54 zones up in 6 seconds
I:xferquota:Have 54 zones up in 7 seconds
I:xferquota:Have 54 zones up in 8 seconds
I:xferquota:Have 54 zones up in 9 seconds
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I:xferquota:Took too long to load zones
I:xferquota:stopping servers
I:xferquota:ns1 died before a SIGTERM was sent
I:xferquota:ns1 didn't die when sent a SIGTERM
I:xferquota:stopping servers failed
I:xferquota:Core dump(s) found: xferquota/ns1/core.30627
D:xferquota:backtrace from xferquota/ns1/core.30627:
D:xferquota:--------------------------------------------------------------------------------
D:xferquota:Core was generated by `/builds/isc-projects/bind9/bin/named/.libs/named -D xferquota-ns1 -X named.lock'.
D:xferquota:Program terminated with signal SIGABRT, Aborted.
D:xferquota:#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
D:xferquota:[Current thread is 1 (Thread 0x7f770bdef700 (LWP 30664))]
D:xferquota:#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
D:xferquota:#1 0x00007f7714c44537 in __GI_abort () at abort.c:79
D:xferquota:#2 0x0000000000466663 in abort ()
D:xferquota:#3 0x00000000004e23d2 in assertion_failed (file=<optimized out>, line=<optimized out>, type=<optimized out>, cond=<optimized out>) at main.c:237
D:xferquota:#4 0x00007f77159655ce in isc_assertion_failed (file=0x2 <error: Cannot access memory at address 0x2>, line=198882080, line@entry=506, type=isc_assertiontype_require, type@entry=isc_assertiontype_insist, cond=0x7f7714c5ace1 <__GI_raise+321> "H\213\204$\b\001") at assertions.c:49
D:xferquota:#5 0x00007f77156bf440 in udp_recv (handle=handle@entry=0x7b4800019b00, eresult=eresult@entry=ISC_R_SUCCESS, region=region@entry=0x7f770bdabc18, arg=<optimized out>) at dispatch.c:506
D:xferquota:#6 0x00007f771594cade in isc__nm_async_readcb (worker=<optimized out>, ev0=ev0@entry=0x7f770bdabc78) at netmgr/netmgr.c:2702
D:xferquota:#7 0x00007f771594ac73 in isc__nm_readcb (sock=sock@entry=0x7b74000bfe00, uvreq=uvreq@entry=0x7b6c00070000, eresult=eresult@entry=ISC_R_SUCCESS) at netmgr/netmgr.c:2675
D:xferquota:#8 0x00007f77159612eb in udp_recv_cb (handle=handle@entry=0x7b74000c03c8, nrecv=nrecv@entry=36, buf=buf@entry=0x7f770bdabe40, addr=addr@entry=0x7f770bdabe90, flags=flags@entry=0) at netmgr/udp.c:647
D:xferquota:#9 0x00007f7715962c6c in isc__nm_udp_read_cb (handle=0x7b74000c03c8, nrecv=36, buf=0x7f770bdabe40, addr=0x7f770bdabe90, flags=0) at netmgr/udp.c:1053
D:xferquota:#10 0x00007f77151aa3f1 in uv__udp_recvmsg (handle=0x7b74000c03c8) at /usr/src/libuv-v1.43.0/src/unix/udp.c:302
D:xferquota:#11 0x00007f77151a9d30 in uv__udp_io (loop=0x7ba00000a540, w=0x7b74000c0448, revents=1) at /usr/src/libuv-v1.43.0/src/unix/udp.c:178
D:xferquota:#12 0x00007f77151b0b87 in uv__io_poll (loop=0x7ba00000a540, timeout=14836) at /usr/src/libuv-v1.43.0/src/unix/epoll.c:374
D:xferquota:#13 0x00007f771519586c in uv_run (loop=0x7ba00000a540, mode=UV_RUN_DEFAULT) at /usr/src/libuv-v1.43.0/src/unix/core.c:389
D:xferquota:#14 0x00007f77159410de in nm_thread (worker0=0x7ba00000a530) at netmgr/netmgr.c:654
D:xferquota:#15 0x00007f771599d254 in isc__trampoline_run (arg=0x7b0c00000870) at trampoline.c:198
D:xferquota:#16 0x0000000000460cfd in __tsan_thread_start_func ()
D:xferquota:#17 0x00007f7714f4cea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
D:xferquota:#18 0x00007f7714d1cdef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
D:xferquota:--------------------------------------------------------------------------------
D:xferquota:full backtrace from xferquota/ns1/core.30627 saved in xferquota/ns1/core.30627-backtrace.txt
D:xferquota:core dump xferquota/ns1/core.30627 archived as xferquota/ns1/core.30627.gz
R:xferquota:FAIL
E:xferquota:2022-04-22T09:51:34+0000
-
Technically speaking, it was triggered for a merge request on top of
main
, but that merge request only touches Python-related code.↩
Edited by Michał Kępień