Here are the output of gdb "info threads". We didn't call "pypy_init_threads()" or "pypy_thread_attach()" in the code. (gdb) info threads Id Target Id Frame 132 Thread 0x414ea940 (LWP 32385) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 131 Thread 0x413e9940 (LWP 32384) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 130 Thread 0x4025c940 (LWP 32382) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 129 Thread 0x45f88940 (LWP 32455) 0x0000003472a9a901 in nanosleep () from /lib64/libc.so.6 128 Thread 0x43760940 (LWP 32412) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 127 Thread 0x43861940 (LWP 32413) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 126 Thread 0x4648d940 (LWP 32460) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 125 Thread 0x4365f940 (LWP 32409) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 124 Thread 0x46089940 (LWP 32456) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 123 Thread 0x46f98940 (LWP 32716) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 122 Thread 0x45c85940 (LWP 32452) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 121 Thread 0x41157940 (LWP 32381) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 120 Thread 0x4517a940 (LWP 32440) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 119 Thread 0x47099940 (LWP 32717) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 118 Thread 0x4234c940 (LWP 32390) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 117 Thread 0x4035d940 (LWP 32386) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 116 Thread 0x42a53940 (LWP 32397) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 115 Thread 0x41b6b940 (LWP 32380) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 114 Thread 0x44f78940 (LWP 32438) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 113 Thread 0x4719a940 (LWP 32718) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 112 Thread 0x4224b940 (LWP 32388) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 111 Thread 0x4254e940 (LWP 32392) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 110 Thread 0x4658e940 (LWP 32461) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 109 Thread 0x42b54940 (LWP 32398) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 108 Thread 0x45b84940 (LWP 32451) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 107 Thread 0x4729b940 (LWP 32719) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 106 Thread 0x41e56940 (LWP 32389) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 105 Thread 0x42f58940 (LWP 32402) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 104 Thread 0x4264f940 (LWP 32393) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 103 Thread 0x4668f940 (LWP 32462) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 102 Thread 0x45a83940 (LWP 32449) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 101 Thread 0x4739c940 (LWP 32720) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 100 Thread 0x4315a940 (LWP 32404) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 ---Type <return> to continue, or q <return> to quit--- 99 Thread 0x42851940 (LWP 32395) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 98 Thread 0x45881940 (LWP 32447) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 97 Thread 0x4749d940 (LWP 32721) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 96 Thread 0x46b94940 (LWP 32712) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 95 Thread 0x4345d940 (LWP 32407) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 94 Thread 0x46790940 (LWP 2815) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 93 Thread 0x44e77940 (LWP 32437) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 92 Thread 0x4355e940 (LWP 32408) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 91 Thread 0x46c95940 (LWP 32713) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 90 Thread 0x4759e940 (LWP 32722) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 89 Thread 0x44d76940 (LWP 32436) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 88 Thread 0x46d96940 (LWP 32714) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 87 Thread 0x4769f940 (LWP 32723) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 86 Thread 0x44a73940 (LWP 32433) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 85 Thread 0x4214a940 (LWP 32377) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 84 Thread 0x477a0940 (LWP 32724) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 83 Thread 0x46e97940 (LWP 32715) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 82 Thread 0x44972940 (LWP 32432) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 81 Thread 0x478a1940 (LWP 32725) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 80 Thread 0x44871940 (LWP 32431) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 79 Thread 0x479a2940 (LWP 32726) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 78 Thread 0x47aa3940 (LWP 32727) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 77 Thread 0x47ba4940 (LWP 32728) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 76 Thread 0x47ca5940 (LWP 32729) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 75 Thread 0x47fa8940 (LWP 2188) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 74 Thread 0x47da6940 (LWP 32730) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 73 Thread 0x480a9940 (LWP 2189) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 72 Thread 0x4527b940 (LWP 32441) 0x0000003472a9a901 in nanosleep () from /lib64/libc.so.6 71 Thread 0x485ae940 (LWP 2195) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 70 Thread 0x4537c940 (LWP 32442) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 69 Thread 0x4618a940 (LWP 32457) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 68 Thread 0x45982940 (LWP 32448) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 67 Thread 0x484ad940 (LWP 2194) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 66 Thread 0x486af940 (LWP 2196) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 ---Type <return> to continue, or q <return> to quit--- 65 Thread 0x4325b940 (LWP 32405) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 64 Thread 0x40ced940 (LWP 32375) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 63 Thread 0x41056940 (LWP 32370) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 62 Thread 0x41ced940 (LWP 32450) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 61 Thread 0x46992940 (LWP 32710) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 60 Thread 0x40772940 (LWP 3069) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 59 Thread 0x483ac940 (LWP 2193) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 58 Thread 0x4628b940 (LWP 32458) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 57 Thread 0x42049940 (LWP 32376) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 56 Thread 0x4048e940 (LWP 32373) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 55 Thread 0x488b1940 (LWP 3071) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 54 Thread 0x46a93940 (LWP 32711) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 53 Thread 0x44770940 (LWP 32430) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 52 Thread 0x42e57940 (LWP 32401) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 51 Thread 0x481aa940 (LWP 2190) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 50 Thread 0x4446d940 (LWP 32425) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 49 Thread 0x43f68940 (LWP 32420) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 48 Thread 0x40dee940 (LWP 32378) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 47 Thread 0x4567f940 (LWP 32445) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 46 Thread 0x43a63940 (LWP 32415) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 45 Thread 0x45e87940 (LWP 32454) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 44 Thread 0x487b0940 (LWP 2197) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 43 Thread 0x41969940 (LWP 32369) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 42 Thread 0x40eef940 (LWP 32379) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 41 Thread 0x41868940 (LWP 32351) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 40 Thread 0x45079940 (LWP 32439) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 39 Thread 0x4638c940 (LWP 32459) 0x0000003472a9a901 in nanosleep () from /lib64/libc.so.6 38 Thread 0x4466f940 (LWP 32429) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 37 Thread 0x4436c940 (LWP 32424) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 36 Thread 0x47ea7940 (LWP 2187) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 35 Thread 0x43059940 (LWP 32403) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 34 Thread 0x4416a940 (LWP 32422) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 33 Thread 0x482ab940 (LWP 2191) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 32 Thread 0x43d66940 (LWP 32418) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 ---Type <return> to continue, or q <return> to quit--- 31 Thread 0x42c55940 (LWP 32399) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 30 Thread 0x45d86940 (LWP 32453) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 29 Thread 0x45780940 (LWP 32446) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 28 Thread 0x4547d940 (LWP 32443) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 27 Thread 0x44b74940 (LWP 32434) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 26 Thread 0x4557e940 (LWP 32444) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 25 Thread 0x40a40940 (LWP 32352) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 24 Thread 0x412e8940 (LWP 32350) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 23 Thread 0x44c75940 (LWP 32435) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 22 Thread 0x7f27f911d8c0 (LWP 31988) 0x0000003472a9a901 in nanosleep () from /lib64/libc.so.6 21 Thread 0x40b41940 (LWP 32368) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 20 Thread 0x41c6c940 (LWP 32383) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 19 Thread 0x4456e940 (LWP 32426) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 18 Thread 0x4426b940 (LWP 32423) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 17 Thread 0x43e67940 (LWP 32419) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 16 Thread 0x44069940 (LWP 32421) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 15 Thread 0x43c65940 (LWP 32417) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 14 Thread 0x4244d940 (LWP 32391) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 13 Thread 0x43b64940 (LWP 32416) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 12 Thread 0x43962940 (LWP 32414) 0x000000347320af59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 11 Thread 0x42d56940 (LWP 32400) 0x000000347320cd91 in sem_wait () from /lib64/libpthread.so.0 10 Thread 0x4335c940 (LWP 32406) 0x0000003472a9a901 in nanosleep () from /lib64/libc.so.6 9 Thread 0x42952940 (LWP 32396) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 8 Thread 0x42750940 (LWP 32394) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 7 Thread 0x415eb940 (LWP 32387) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 6 Thread 0x41a6a940 (LWP 32374) 0x0000003472ad4d98 in epoll_wait () from /lib64/libc.so.6 5 Thread 0x4093f940 (LWP 3068) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 4 Thread 0x41767940 (LWP 32346) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 3 Thread 0x40671940 (LWP 32345) 0x0000003472a9a901 in nanosleep () from /lib64/libc.so.6 2 Thread 0x4015b940 (LWP 3070) 0x000000347320b1c0 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 * 1 Thread 0x46891940 (LWP 3067) 0x00007f27ff816b82 in rpyvmprof_f_pypy_rrr () from /usr/local/pypy/libpypy-c.so
On Tue, Sep 8, 2015 at 2:33 PM, Armin Rigo <ar...@tunes.org> wrote: > Hi Yicong, > > On Tue, Sep 8, 2015 at 5:07 AM, Yicong Huang <hengha....@gmail.com> wrote: > > 0x00007f27ff816b6a <+42>: 66 48 8d 3d 8e b3 2f 01 data16 lea > > 0x12fb38e(%rip),%rdi # 0x7f2800b11f00 > > 0x00007f27ff816b72 <+50>: 66 66 48 e8 6e ec cf ff data16 data16 > callq > > 0x7f27ff5157e8 <__tls_get_addr@plt> > > 0x00007f27ff816b7e <+62>: 48 8b 68 30 mov 0x30(%rax),%rbp > > => 0x00007f27ff816b82 <+66>: 4c 8b 75 48 mov 0x48(%rbp),%r14 > > The first two instructions are reading the TLS (thread-local storage); > then the 3rd is mostly probably reading the current executioncontext; > then the 4th is trying to read something out of the > executioncontext---which is NULL at this point. > > I may be wrong, but I think that this crash can only occur in these > two cases: if rpython_startup_code() was not called yet (which should > not be the case here), or if the crash occurs in a different thread > and pypy_thread_attach() was not called yet in this thread. > > You should be able to check if the program was running multiple > threads by doing "info threads" in gdb at the point of the crash. If > it is, did you call pypy_init_threads() once from the main thread and > then pypy_thread_attach() in that other thread? > > > A bientôt, > > Armin. >
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