On Thu, Aug 4, 2022 at 10:05 AM Richard Purdie < [email protected]> wrote:
> Just to note that where we've been seeing pseudo hangs in rust, it > seems jemalloc calls obtain_malloc_conf() which calls readlink() which > pseudo intercepts and then calls malloc() which loops back to jemalloc > which deadlocks. What fun. I guess pseudo is doing this extra malloc right ? Maybe disable instrumentation in jemalloc when building non target packages. This might avoid the issue at least > > > #0 0x00007f3806c84bcf in __lll_lock_wait () from > /home/pokybuild/yocto-worker/qemumips64/build/build/tmp/sysroots-uninative/x86_64-linux/lib/libc.so.6 > #1 0x00007f3806c8aec2 in pthread_mutex_lock () from > /home/pokybuild/yocto-worker/qemumips64/build/build/tmp/sysroots-uninative/x86_64-linux/lib/libc.so.6 > #2 0x00005629da227a0e in malloc_mutex_lock_final (mutex=0x5629da45a288 > <init_lock>) at include/jemalloc/internal/mutex.h:155 > #3 _rjem_je_malloc_mutex_lock_slow (mutex=0x5629da45a288 <init_lock>) at > src/mutex.c:85 > #4 0x00005629da1ffddb in malloc_mutex_lock (tsdn=0x0, mutex=<optimized > out>) at include/jemalloc/internal/mutex.h:221 > #5 malloc_init_hard () at src/jemalloc.c:1739 > #6 0x00005629da1fa2ee in malloc_init () at src/jemalloc.c:223 > #7 imalloc_init_check (sopts=<optimized out>, dopts=<optimized out>) at > src/jemalloc.c:2229 > #8 imalloc (sopts=<optimized out>, dopts=<optimized out>) at > src/jemalloc.c:2260 > #9 _rjem_je_malloc_default (size=101) at src/jemalloc.c:2289 > #10 0x00007f3806c998fe in strdup () from > /home/pokybuild/yocto-worker/qemumips64/build/build/tmp/sysroots-uninative/x86_64-linux/lib/libc.so.6 > #11 0x00007f380b19da1b in pseudo_set_value () from > /home/pokybuild/yocto-worker/qemumips64/build/build/tmp/sysroots-components/x86_64/pseudo-native/usr/lib/pseudo/lib64/libpseudo.so > #12 0x00007f380b19dbb9 in pseudo_init_util () from > /home/pokybuild/yocto-worker/qemumips64/build/build/tmp/sysroots-components/x86_64/pseudo-native/usr/lib/pseudo/lib64/libpseudo.so > #13 0x00007f380b16bd01 in ?? () from > /home/pokybuild/yocto-worker/qemumips64/build/build/tmp/sysroots-components/x86_64/pseudo-native/usr/lib/pseudo/lib64/libpseudo.so > #14 0x00007f380b19125d in readlink () from > /home/pokybuild/yocto-worker/qemumips64/build/build/tmp/sysroots-components/x86_64/pseudo-native/usr/lib/pseudo/lib64/libpseudo.so > #15 0x00005629da1fe07b in obtain_malloc_conf (which_source=2, > buf=0x7ffca80e7cc0 "\320~\016\250\374\177") at src/jemalloc.c:980 > #16 malloc_conf_init_helper (sc_data=sc_data@entry=0x0, > bin_shard_sizes=bin_shard_sizes@entry=0x0, initial_call=true, > opts_cache=opts_cache@entry=0x7ffca80e6260, buf=<optimized out>, > buf@entry=0x7ffca80e7cc0 "\320~\016\250\374\177") at > src/jemalloc.c:1038 > #17 0x00005629da1fdcac in malloc_conf_init (sc_data=0x7ffca80e6310, > bin_shard_sizes=0x7ffca80e6280) at src/jemalloc.c:1445 > #18 malloc_init_hard_a0_locked () at src/jemalloc.c:1505 > #19 0x00005629da1fff46 in malloc_init_hard () at src/jemalloc.c:1750 > #20 0x00005629da1fa2ee in malloc_init () at src/jemalloc.c:223 > > Cheers, > > Richard > > > >
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