odp_timer fails periodically with segfaults in CI https://bugs.linaro.org/show_bug.cgi?id=1615
You can replicate on my machine by running a load and then running this a few times until it pops, I assume sometimes the CI build machines are also loaded and it surfaces as an issue. This is seen on ARM and X86 HW On 1 July 2015 at 12:03, Ola Liljedahl <[email protected]> wrote: > On 30 June 2015 at 12:16, Ivan Khoronzhuk <[email protected]> > wrote: > >> It's more generic implementation simplify reusing timer API >> for other platforms. >> >> Signed-off-by: Ivan Khoronzhuk <[email protected]> >> > Reviewed-by: Ola Liljedahl <[email protected]> > > >> - > > > I got a (spurious) segmentation fault from the timer validation program > but this was after the actual timer tests had been performed. Running on a > quad-threaded Haswell Core i7 running Ubuntu 15.04. > > odp_timer.c:484:test_odp_timer_all():#timers..: 2000 > odp_timer.c:486:test_odp_timer_all():Tmo range: 2000 ms (600 ticks) > odp_timer.c:393:worker_entrypoint():Thread 1: 2512 timers set > odp_timer.c:394:worker_entrypoint():Thread 1: 442 timers reset > odp_timer.c:395:worker_entrypoint():Thread 1: 446 timers cancelled > odp_timer.c:397:worker_entrypoint():Thread 1: 0 timers reset/cancelled too > late > odp_timer.c:398:worker_entrypoint():Thread 1: 1359 timeouts received > odp_timer.c:400:worker_entrypoint():Thread 1: 0 stale timeout(s) after > odp_timer_free() > odp_timer.c:432:worker_entrypoint():Thread 1: exiting > odp_timer.c:393:worker_entrypoint():Thread 3: 2537 timers set > odp_timer.c:394:worker_entrypoint():Thread 3: 424 timers reset > odp_timer.c:395:worker_entrypoint():Thread 3: 439 timers cancelled > odp_timer.c:397:worker_entrypoint():Thread 3: 0 timers reset/cancelled too > late > odp_timer.c:398:worker_entrypoint():Thread 3: 1394 timeouts received > odp_timer.c:400:worker_entrypoint():Thread 3: 1 stale timeout(s) after > odp_timer_free() > odp_timer.c:393:worker_entrypoint():Thread 2: 2535 timers set > odp_timer.c:394:worker_entrypoint():Thread 2: 442 timers reset > odp_timer.c:395:worker_entrypoint():Thread 2: 423 timers cancelled > odp_timer.c:397:worker_entrypoint():Thread 2: 0 timers reset/cancelled too > late > odp_timer.c:398:worker_entrypoint():Thread 2: 1373 timeouts received > odp_timer.c:400:worker_entrypoint():Thread 2: 0 stale timeout(s) after > odp_timer_free() > odp_timer.c:432:worker_entrypoint():Thread 3: exiting > odp_timer.c:432:worker_entrypoint():Thread 2: exiting > odp_timer.c:511:test_odp_timer_all():Number of timeouts delivered/received > too late: 0 > passedSegmentation fault (core dumped) > > I assume this "passed" is printed by the following call which is last in > the test_odp_timer_all test case. Something wrong in Cunit or the ODP > test/validation framework? > CU_PASS("ODP timer test"); > } > > Only happened once... If you can't reproduce it, you can't fix it. Maybe > it was radiation from outer space. > > > >> -- >> >> I've checked this patch with Keystone implementation. >> >> .../linux-generic/include/odp_timer_internal.h | 9 ------- >> platform/linux-generic/odp_timer.c | 31 >> ++++++++++++---------- >> 2 files changed, 17 insertions(+), 23 deletions(-) >> >> diff --git a/platform/linux-generic/include/odp_timer_internal.h >> b/platform/linux-generic/include/odp_timer_internal.h >> index 90af62c..8b0e93d 100644 >> --- a/platform/linux-generic/include/odp_timer_internal.h >> +++ b/platform/linux-generic/include/odp_timer_internal.h >> @@ -39,13 +39,4 @@ typedef struct odp_timeout_hdr_stride { >> uint8_t >> pad[ODP_CACHE_LINE_SIZE_ROUNDUP(sizeof(odp_timeout_hdr_t))]; >> } odp_timeout_hdr_stride; >> >> - >> -/** >> - * Return the timeout header >> - */ >> -static inline odp_timeout_hdr_t *odp_timeout_hdr(odp_buffer_t buf) >> -{ >> - return (odp_timeout_hdr_t *)odp_buf_to_hdr(buf); >> -} >> - >> #endif >> diff --git a/platform/linux-generic/odp_timer.c >> b/platform/linux-generic/odp_timer.c >> index bd1b778..68d7b11 100644 >> --- a/platform/linux-generic/odp_timer.c >> +++ b/platform/linux-generic/odp_timer.c >> @@ -78,7 +78,13 @@ static _odp_atomic_flag_t locks[NUM_LOCKS]; /* >> Multiple locks per cache line! */ >> >> static odp_timeout_hdr_t *timeout_hdr_from_buf(odp_buffer_t buf) >> { >> - return (odp_timeout_hdr_t *)odp_buf_to_hdr(buf); >> + return (odp_timeout_hdr_t *)(void *)odp_buf_to_hdr(buf); >> +} >> + >> +static odp_timeout_hdr_t *timeout_hdr(odp_timeout_t tmo) >> +{ >> + odp_buffer_t buf = >> odp_buffer_from_event(odp_timeout_to_event(tmo)); >> + return timeout_hdr_from_buf(buf); >> } >> >> >> >> /****************************************************************************** >> @@ -421,7 +427,8 @@ static bool timer_reset(uint32_t idx, >> } else { >> /* We have a new timeout buffer which replaces any old >> one */ >> /* Fill in some (constant) header fields for timeout >> events */ >> - if (_odp_buffer_type(*tmo_buf) == ODP_EVENT_TIMEOUT) { >> + if (odp_event_type(odp_buffer_to_event(*tmo_buf)) == >> + ODP_EVENT_TIMEOUT) { >> /* Convert from buffer to timeout hdr */ >> odp_timeout_hdr_t *tmo_hdr = >> timeout_hdr_from_buf(*tmo_buf); >> @@ -566,7 +573,8 @@ static unsigned timer_expire(odp_timer_pool *tp, >> uint32_t idx, uint64_t tick) >> #endif >> if (odp_likely(tmo_buf != ODP_BUFFER_INVALID)) { >> /* Fill in expiration tick for timeout events */ >> - if (_odp_buffer_type(tmo_buf) == ODP_EVENT_TIMEOUT) { >> + if (odp_event_type(odp_buffer_to_event(tmo_buf)) == >> + ODP_EVENT_TIMEOUT) { >> /* Convert from buffer to timeout hdr */ >> odp_timeout_hdr_t *tmo_hdr = >> timeout_hdr_from_buf(tmo_buf); >> @@ -815,19 +823,17 @@ odp_timeout_t odp_timeout_from_event(odp_event_t ev) >> /* This check not mandated by the API specification */ >> if (odp_event_type(ev) != ODP_EVENT_TIMEOUT) >> ODP_ABORT("Event not a timeout"); >> - return >> (odp_timeout_t)timeout_hdr_from_buf(odp_buffer_from_event(ev)); >> + return (odp_timeout_t)ev; >> } >> >> odp_event_t odp_timeout_to_event(odp_timeout_t tmo) >> { >> - odp_timeout_hdr_t *tmo_hdr = (odp_timeout_hdr_t *)tmo; >> - odp_buffer_t buf = odp_hdr_to_buf(&tmo_hdr->buf_hdr); >> - return odp_buffer_to_event(buf); >> + return (odp_event_t)tmo; >> } >> >> int odp_timeout_fresh(odp_timeout_t tmo) >> { >> - const odp_timeout_hdr_t *hdr = (odp_timeout_hdr_t *)tmo; >> + const odp_timeout_hdr_t *hdr = timeout_hdr(tmo); >> odp_timer_t hdl = hdr->timer; >> odp_timer_pool *tp = handle_to_tp(hdl); >> uint32_t idx = handle_to_idx(hdl, tp); >> @@ -840,20 +846,17 @@ int odp_timeout_fresh(odp_timeout_t tmo) >> >> odp_timer_t odp_timeout_timer(odp_timeout_t tmo) >> { >> - const odp_timeout_hdr_t *hdr = (odp_timeout_hdr_t *)tmo; >> - return hdr->timer; >> + return timeout_hdr(tmo)->timer; >> } >> >> uint64_t odp_timeout_tick(odp_timeout_t tmo) >> { >> - const odp_timeout_hdr_t *hdr = (odp_timeout_hdr_t *)tmo; >> - return hdr->expiration; >> + return timeout_hdr(tmo)->expiration; >> } >> >> void *odp_timeout_user_ptr(odp_timeout_t tmo) >> { >> - const odp_timeout_hdr_t *hdr = (odp_timeout_hdr_t *)tmo; >> - return hdr->user_ptr; >> + return timeout_hdr(tmo)->user_ptr; >> } >> >> odp_timeout_t odp_timeout_alloc(odp_pool_t pool) >> -- >> 1.9.1 >> >> > > _______________________________________________ > lng-odp mailing list > [email protected] > https://lists.linaro.org/mailman/listinfo/lng-odp > > -- Mike Holmes Technical Manager - Linaro Networking Group Linaro.org <http://www.linaro.org/> *│ *Open source software for ARM SoCs
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