crashes in abseil library on RISC-V

Description

With the upgrade to YP 5.0 / scarthgap, it looks like anything that uses the gRPC C++ library coredumps with a SIGILL in libabsl from the abseil package. I believe this was not happening at one point in the recent past when testing the next branch, so it may possible to narrow it down to a abseil-cpp version change. It seems likely this due to a build configuration problem in abseil-cpp.

A backtrace from one of the coredumps:

(gdb) bt
#0  absl::lts_20240116::base_internal::UnscaledCycleClock::Now () at /usr/src/debug/abseil-cpp/20240116.2/absl/base/internal/unscaledcycleclock.cc:128
#1  0x00007fff93d031ce in absl::lts_20240116::base_internal::CycleClock::Now () at /usr/src/debug/abseil-cpp/20240116.2/absl/base/internal/cycleclock.h:128
#2  absl::lts_20240116::SynchWaitParams::SynchWaitParams (cv_word_arg=0x555572fb7708, thread_arg=<optimized out>, cvmu_arg=0x555572fb76f0, timeout_arg=..., cond_arg=0x0, how_arg=0x7fff93d059f8 <absl::lts_20240116::kExclusiveS>, 
    this=0x7fff920b73a8) at /usr/src/debug/abseil-cpp/20240116.2/absl/synchronization/mutex.cc:505
#3  absl::lts_20240116::CondVar::WaitCommon (this=this@entry=0x555572fb7708, mutex=mutex@entry=0x555572fb76f0, t=t@entry=...) at /usr/src/debug/abseil-cpp/20240116.2/absl/synchronization/mutex.cc:2607
#4  0x00007fff935d4860 in absl::lts_20240116::CondVar::Wait (mu=0x555572fb76f0, this=0x555572fb7708) at /usr/include/absl/synchronization/mutex.h:925
#5  gpr_cv_wait (cv=0x555572fb7708, mu=0x555572fb76f0, abs_deadline=...) at /usr/src/debug/grpc/1.60.1/src/core/lib/gpr/sync_abseil.cc:78
#6  0x00007fff939f2f3a in grpc_core::Executor::ThreadMain (arg=0x555572fb76f0) at /usr/src/debug/grpc/1.60.1/src/core/lib/iomgr/executor.cc:230
#7  0x00007fff935d632a in operator() (__closure=0x0, v=<optimized out>) at /usr/src/debug/grpc/1.60.1/src/core/lib/gprpp/posix/thd.cc:145
#8  _FUN () at /usr/src/debug/grpc/1.60.1/src/core/lib/gprpp/posix/thd.cc:150
#9  0x00007fff93202042 in start_thread (arg=<optimized out>) at pthread_create.c:447
#10 0x00007fff9324aef8 in __thread_start_clone3 () at ../sysdeps/unix/sysv/linux/riscv/clone3.S:71

Environment

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Walt Miner

June 13, 2024 at 3:18 PM

Close for RR 18.0.0 M1

Scott Murray

May 21, 2024 at 3:47 PM

Sigh, it looks like the change will also need to be backported into the python3-grpcio recipe, as it ends up using a copy of abseil-cpp that is vendored in the grpc repository.

Scott Murray

May 1, 2024 at 9:37 PM

I believe this upstream change will be a fix: https://github.com/abseil/abseil-cpp/pull/1644 (now commit 7335a36d in abseil-cpp master branch). Based on a quick look at previous abseil-cpp release dates, I suspect we won't see a release with that change for a while. Realistically this should go into the abseil-cpp recipe in upstream meta-oe, I'll work up something for that.

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Scott Murray

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Scott Murray

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Major

Created April 30, 2024 at 8:07 PM

Updated June 13, 2024 at 3:18 PM

Resolved June 3, 2024 at 12:28 PM

crashes in abseil library on RISC-V

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