Comments (8)
tom-anders
commented on September 12, 2024
1
Ah, so it only crashes once you enter the analysis screen, got it! Then I can reproduce as well
from mobile.
tom-anders
commented on September 12, 2024
Tried reproducing on my Android phone, but even adding a pawn to every single square did not crash. Is this 100% reproducible for you?
from mobile.
olivertzeng
commented on September 12, 2024
Tried reproducing on my Android phone, but even adding a pawn to every single square did not crash. Is this 100% reproducible for you?
Yes let me record this
from mobile.
olivertzeng
commented on September 12, 2024
Tried reproducing on my Android phone, but even adding a pawn to every single square did not crash. Is this 100% reproducible for you?
from mobile.
tom-anders
commented on September 12, 2024
Most minimal reproduction steps:
- Open Board Editor
- Add an additional white pawn to e4 (or any other square apparently)
- Open Analysis board
It looks like stockfish crashes (see stacktrace below). Interestingly, the same reproduction steps also crash the old lichess app. Not sure if this is actually a stockfish issue, or if we're giving stockfish wrong/unexpected inputs. @veloce any ideas?
I/flutter ( 3443): Engine state: EngineState.loading
I/flutter ( 3443): Engine state: EngineState.computing
F/libc ( 3443): Fatal signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x748d40340c00 in tid 3813 (DartWorker), pid 3443 (.mobileV2.debug)
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'google/sdk_gphone64_x86_64/emu64xa:15/AP31.240617.003/12088229:user/release-keys'
Revision: '0'
ABI: 'x86_64'
Timestamp: 2024-09-10 08:32:58.701874929+0200
Process uptime: 17s
Cmdline: org.lichess.mobileV2.debug
pid: 3443, tid: 3813, name: DartWorker >>> org.lichess.mobileV2.debug <<<
uid: 10201
signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x0000748d40340c00
rax 0000748d15200000 rbx 0000748d148308c0 rcx 00000000158a0000 rdx 0000000000006fcc
r8 0000748d1483a300 r9 0000748d15200c00 r10 00000000ffffffb3 r11 0000748fe72485f8
r12 0000748d213eb0c8 r13 0000748d148308c0 r14 0000748d148308c0 r15 0000748d148308c0
rdi 0000748d14828350 rsi 00000000ffffffff
rbp 0000748d148283f0 rsp 0000748d14828310 rip 0000748d1edcede9
11 total frames
backtrace:
#00 pc 0000000002751de9 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (void Stockfish::Eval::NNUE::FeatureTransformer::update_accumulator_refresh<(Stockfish::Color)0>(Stockfish::Position const&) const+329) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#01 pc 0000000002752a09 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (void Stockfish::Eval::NNUE::FeatureTransformer::update_accumulator<(Stockfish::Color)0>(Stockfish::Position const&) const+249) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#02 pc 0000000002750c17 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (Stockfish::Eval::NNUE::FeatureTransformer::transform(Stockfish::Position const&, unsigned char*, int) const+39) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#03 pc 000000000274f189 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (Stockfish::Eval::NNUE::evaluate(Stockfish::Position const&, bool, int*)+185) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#04 pc 0000000002732a73 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (Stockfish::Eval::evaluate(Stockfish::Position const&)+275) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#05 pc 0000000002763614 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#06 pc 0000000002761433 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (Stockfish::Thread::search()+2819) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#07 pc 00000000027918a6 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (Stockfish::Thread::idle_loop()+310) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#08 pc 0000000002796519 /data/app/~~LucKNvJJBZyjEEeoNv9fFA==/org.lichess.mobileV2.debug-5P87t8riTcwJ2OsXXwl_Wg==/base.apk!libstockfish.so (offset 0x7d66000) (void* Stockfish::start_routine<Stockfish::Thread, std::__ndk1::pair<Stockfish::Thread*, void (Stockfish::Thread::*)()>>(void*)+105) (BuildId: ef8ea4ea7db75e97494535e846c46975098d6654)
#09 pc 000000000006d62a /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+58) (BuildId: eb58b4d427279994f00c0e1818477e4f)
#10 pc 0000000000060348 /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+56) (BuildId: eb58b4d427279994f00c0e1818477e4f)
from mobile.
veloce
commented on September 12, 2024
It is possible that stockfish would fail with weird positions. We could add more safeguards. It is also possible that these exists on the website, so we could reuse the logic.
from mobile.
olivertzeng
commented on September 12, 2024
It is possible that stockfish would fail with weird positions. We could add more safeguards. It is also possible that these exists on the website, so we could reuse the logic.
from mobile.
tom-anders
commented on September 12, 2024
@olivertzeng I think that is actually a unrelated issue caused by the recent stockfish 17 integration, I same a similar issue o. For me https://lichess.org/analysis/rnbqkbnr/pppppppp/8/8/8/4P3/PPPPPPPP/RNBQKBNR_w_KQkq_-_0_1?color=white works on web (both stockfish 16 and 17 actually)
So to me it looks like stockfish should handle this position just fine
from mobile.
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