diff options
Diffstat (limited to 'gitlab/issues_text/target_arm/host_missing/accel_missing/2604')
| -rw-r--r-- | gitlab/issues_text/target_arm/host_missing/accel_missing/2604 | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/gitlab/issues_text/target_arm/host_missing/accel_missing/2604 b/gitlab/issues_text/target_arm/host_missing/accel_missing/2604 deleted file mode 100644 index 54593f0c0..000000000 --- a/gitlab/issues_text/target_arm/host_missing/accel_missing/2604 +++ /dev/null @@ -1,44 +0,0 @@ -qemu-user-static crash when executing generated NEON code due to failure to detect invalidation -Description of problem: -`qemu-arm-static` crashes 100% of times when attempting to run NEON code. The same executable, when run in `system` emulation mode, works without issue. - -I experience this particular issue when attempting to test GStreamer's Orc library with NEON codegen with QEMU user emulation. -Steps to reproduce: -1. Clone https://gitlab.freedesktop.org/gstreamer/orc.git -2. Build with `meson setup build -Ddefault_library=static; meson compile -C build` -3. Run `qemu-arm-static ./build/tools/orc-bugreport` -Additional information: -The crash always happens inside the same JIT code. It is not a memory access, so there is no reason for QEMU to report SIGSEGV: - -``` -Program received signal SIGSEGV, Segmentation fault. -0x409e503c in ?? () -(gdb) bt -#0 0x409e503c in ?? () -#1 0x00408bc6 in orc_executor_run (ex=0x51cfc0) at ../orc/orcexecutor.c:51 -#2 0x00489692 in orc_test_compare_output_full_for_target (program=0x4bcd90, flags=0, - target_name=0x0) at ../orc-test/orctest.c:800 -#3 0x00489004 in orc_test_compare_output_full (program=0x4bcd90, flags=0) - at ../orc-test/orctest.c:664 -#4 0x00404826 in test_opcode_src (opcode=0x4b098c <opcodes+2400>) - at ../tools/orc-bugreport.c:252 -#5 0x004045d8 in test_opcodes () at ../tools/orc-bugreport.c:188 -#6 0x004043f2 in main (argc=1, argv=0x40800704) at ../tools/orc-bugreport.c:118 -(gdb) disas 0x409e5030 -No function contains specified address. -(gdb) disas 0x409e5030, +10 -Dump of assembler code from 0x409e5030 to 0x409e503a: - 0x409e5030: vld1.8 {d4-d5}, [r3] - 0x409e5034: vst1.8 {d4-d5}, [r2] - 0x409e5038: add r2, r2, #16 -End of assembler dump. -(gdb) disas 0x409e5030, +20 -Dump of assembler code from 0x409e5030 to 0x409e5044: - 0x409e5030: vld1.8 {d4-d5}, [r3] - 0x409e5034: vst1.8 {d4-d5}, [r2] - 0x409e5038: add r2, r2, #16 -=> 0x409e503c: add r3, r3, #16 - 0x409e5040: subs r12, r12, #1 -End of assembler dump. -(gdb) -``` |