Assertion fail question

[Marcin Zalewski]

OK, I have figured out that this was happening due to double free.

Sorry for the false alarm and 3 emails.

On Thu, Jan 1, 2015 at 1:47 PM, Marcin Zalewski <marcin.zalewski at gmail.com>
wrote:

> I just got a stack trace on this assertion fail (below), and it seem that
> second assertion is triggered in error processing.
>
> #0  0x00007fffbf9ff3f8 in pthread_once () from
> /lib/x86_64-linux-gnu/libpthread.so.0
> #1  0x00007fffbf73e074 in backtrace () from /lib/x86_64-linux-gnu/libc.so.6
> #2  0x00007fff7a99b0f0 in ipath_sighdlr (sig=<optimized out>,
> p1=<optimized out>, ucv=0x7fff78558380) at ipath_debug.c:116
> #3  <signal handler called>
> #4  0x00007fffbf6690d5 in raise () from /lib/x86_64-linux-gnu/libc.so.6
> #5  0x00007fffbf66c83b in abort () from /lib/x86_64-linux-gnu/libc.so.6
> #6  0x00007fffbfc4d9ec in je_tcache_event (tcache=0x7fffbe81a000) at
> include/jemalloc/internal/tcache.h:212
> #7  0x00007fffbfc4dd03 in je_tcache_alloc_small (tcache=0x7fffbe81a000,
> size=36, zero=false) at include/jemalloc/internal/tcache.h:273
> #8  0x00007fffbfc1c7ad in je_arena_malloc (tsd=0x7fffc17e5708, arena=0x0,
> size=36, zero=false, try_tcache=true) at
> include/jemalloc/internal/arena.h:931
> #9  0x00007fffbfc1378c in je_imalloct (tsd=0x7fffc17e5708, size=36,
> try_tcache=true, arena=0x0) at
> include/jemalloc/internal/jemalloc_internal.h:816
> #10 0x00007fffbfc137da in je_imalloc (tsd=0x7fffc17e5708, size=36) at
> include/jemalloc/internal/jemalloc_internal.h:825
> #11 0x00007fffbfc172a8 in imalloc_body (size=36, tsd=0x7fff78558bc0,
> usize=0x7fff78558bb8) at src/jemalloc.c:1331
> #12 0x00007fffbfc172e4 in malloc (size=36) at src/jemalloc.c:1344
> #13 0x00007fffc15e294e in ?? () from /lib64/ld-linux-x86-64.so.2
> #14 0x00007fffc15ed84b in ?? () from /lib64/ld-linux-x86-64.so.2
> #15 0x00007fffc15e9176 in ?? () from /lib64/ld-linux-x86-64.so.2
> #16 0x00007fffc15ed31a in ?? () from /lib64/ld-linux-x86-64.so.2
> #17 0x00007fffbf763c62 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
> #18 0x00007fffc15e9176 in ?? () from /lib64/ld-linux-x86-64.so.2
> #19 0x00007fffbf763d24 in __libc_dlopen_mode () from
> /lib/x86_64-linux-gnu/libc.so.6
> #20 0x00007fffbf73df55 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
> #21 0x00007fffbf9ff400 in pthread_once () from
> /lib/x86_64-linux-gnu/libpthread.so.0
> #22 0x00007fffbf73e074 in backtrace () from /lib/x86_64-linux-gnu/libc.so.6
> #23 0x00007fff7a99b0f0 in ipath_sighdlr (sig=<optimized out>,
> p1=<optimized out>, ucv=0x7fff785594c0) at ipath_debug.c:116
> #24 <signal handler called>
> #25 0x00007fffbf6690d5 in raise () from /lib/x86_64-linux-gnu/libc.so.6
> #26 0x00007fffbf66c83b in abort () from /lib/x86_64-linux-gnu/libc.so.6
> #27 0x00007fffbfc21acf in arena_run_reg_dalloc (run=0x7fffbe8039e8,
> ptr=0x7fffbe8644d0) at src/arena.c:182
> #28 0x00007fffbfc2711f in arena_dalloc_bin_locked_impl
> (arena=0x7fffbf010140, chunk=0x7fffbe800000, ptr=0x7fffbe8644d0,
> bitselm=0x7fffbe800258, junked=true) at src/arena.c:1854
> #29 0x00007fffbfc27209 in je_arena_dalloc_bin_junked_locked
> (arena=0x7fffbf010140, chunk=0x7fffbe800000, ptr=0x7fffbe8644d0,
> bitselm=0x7fffbe800258) at src/arena.c:1872
> #30 0x00007fffbfc4e842 in je_tcache_bin_flush_small (tbin=0x7fffbe81a0c8,
> binind=5, rem=0, tcache=0x7fffbe81a000) at src/tcache.c:120
> #31 0x00007fffbfc4e40c in je_tcache_event_hard (tcache=0x7fffbe81a000) at
> src/tcache.c:36
> #32 0x00007fffbfc4da0f in je_tcache_event (tcache=0x7fffbe81a000) at
> include/jemalloc/internal/tcache.h:214
> #33 0x00007fffbfc4dd03 in je_tcache_alloc_small (tcache=0x7fffbe81a000,
> size=24, zero=false) at include/jemalloc/internal/tcache.h:273
> #34 0x00007fffbfc1c7ad in je_arena_malloc (tsd=0x7fffc17e5708, arena=0x0,
> size=24, zero=false, try_tcache=true) at
> include/jemalloc/internal/arena.h:931
> #35 0x00007fffbfc1378c in je_imalloct (tsd=0x7fffc17e5708, size=24,
> try_tcache=true, arena=0x0) at
> include/jemalloc/internal/jemalloc_internal.h:816
> #36 0x00007fffbfc137da in je_imalloc (tsd=0x7fffc17e5708, size=24) at
> include/jemalloc/internal/jemalloc_internal.h:825
> #37 0x00007fffbfc172a8 in imalloc_body (size=24, tsd=0x7fff78559ef0,
> usize=0x7fff78559ee8) at src/jemalloc.c:1331
> #38 0x00007fffbfc172e4 in malloc (size=24) at src/jemalloc.c:1344
> #39 0x00000000004082be in sssp_queue_push (q=0x7fffbe865420,
> v=140729942941792, d=5032) at ./include/libpxgl/unlocked_pqueue_wrapper.h:75
> #40 0x0000000000408511 in _sssp_dc_process_vertex_action
> (distance=0x7ffc848478c0) at src/sssp_dc1.c:74
> #41 0x000000000042d751 in _thread_enter (parcel=0x7ffc84847880) at
> worker.c:95
> #42 0x0000000000000000 in ?? ()
>
> On Thu, Jan 1, 2015 at 1:44 PM, Marcin Zalewski <marcin.zalewski at gmail.com
> > wrote:
>
>> I am using the latest jemalloc dev (9c6a8d) compiled only with
>> --enable-debug. I am getting the following two assertions fail in my
>> program (16 threads):
>>
>> src/arena.c:182: Failed assertion: "bitmap_get(run->bitmap,
>> &bin_info->bitmap_info, regind)"
>> include/jemalloc/internal/tcache.h:212: Failed assertion: "tcache->ev_cnt
>> <= TCACHE_GC_INCR"
>>
>> Is there something obvious that I am doing wrong? I would appreciate any
>> help.
>>
>> Thank you,
>> Marcin
>>
>
>
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