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Diffstat (limited to 'results/classifier/118/debug/866')
| -rw-r--r-- | results/classifier/118/debug/866 | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/results/classifier/118/debug/866 b/results/classifier/118/debug/866 deleted file mode 100644 index fabe90eb..00000000 --- a/results/classifier/118/debug/866 +++ /dev/null @@ -1,83 +0,0 @@ -debug: 0.903 -graphic: 0.880 -TCG: 0.847 -ppc: 0.831 -permissions: 0.831 -VMM: 0.826 -arm: 0.820 -semantic: 0.819 -network: 0.819 -hypervisor: 0.805 -kernel: 0.799 -architecture: 0.792 -user-level: 0.783 -x86: 0.782 -vnc: 0.777 -device: 0.772 -performance: 0.768 -assembly: 0.754 -PID: 0.752 -risc-v: 0.751 -files: 0.749 -peripherals: 0.743 -socket: 0.738 -mistranslation: 0.737 -KVM: 0.722 -boot: 0.700 -register: 0.673 -i386: 0.665 -virtual: 0.659 - -linux-user: substantial memory leak when threads are created and destroyed -Description of problem: -Substantial memory leak when the following simple program is executed on `qemu-arm`, -```c -// compile with `arm-none-linux-gnueabihf-gcc test_qemu.c -o test_qemu.out -pthread` - -#include <assert.h> -#include <pthread.h> - -#define MAGIC_RETURN ((void *)42) - -void *thread_main(void *arg) -{ - return MAGIC_RETURN; -} - -int main(int argc, char *argv[]) -{ - size_t i; - for (i = 0;; i++) - { - pthread_t thread; - assert(pthread_create(&thread, NULL, thread_main, NULL) == 0); - void *ret; - assert(pthread_join(thread, &ret) == 0); - assert(ret == MAGIC_RETURN); - } - - return 0; -} -``` -Steps to reproduce: -1. -``` -export TOOLCHAIN_PREFIX=arm-none-linux-gnueabihf -export ARMSDK=/${TOOLCHAIN_PREFIX} -export SYSROOT=${ARMSDK}/${TOOLCHAIN_PREFIX}/libc -export CC=${ARMSDK}/bin/${TOOLCHAIN_PREFIX}-gcc -``` -2. Download the arm toolchain: `curl --output ${TOOLCHAIN_PREFIX}.tar.xz -L 'https://developer.arm.com/-/media/Files/downloads/gnu-a/10.2-2020.11/binrel/gcc-arm-10.2-2020.11-x86_64-arm-none-linux-gnueabihf.tar.xz?revision=d0b90559-3960-4e4b-9297-7ddbc3e52783&la=en&hash=985078B758BC782BC338DB947347107FBCF8EF6B'` -3. `mkdir -p ${ARMSDK} && tar xf ${TOOLCHAIN_PREFIX}.tar.xz -C ${ARMSDK} --strip-components=1` -4. `$CC test_qemu.c -o test_qemu.out -pthread` -5. `qemu-arm -L $SYSROOT ./test_qemu.out` -6. Observe memory usage keeps ramping up and crashes the process once out of memory. -Additional information: -Valgrind annotation logs [annot.log](/uploads/f8d05d8f216d5a589e8da0758a345de6/annot.log) generated by a local build on master@0a301624c2f4ced3331ffd5bce85b4274fe132af from -```bash -valgrind --xtree-memory=full --xtree-memory-file=xtmemory.kcg bin/debug/native/qemu-arm -L $SYSROOT /mnt/f/test_qemu3.out -# Send CTRL-C before the process crashes due to oom -callgrind_annotate --auto=yes --inclusive=yes --sort=curB:100,curBk:100,totB:100,totBk:100,totFdB:100,totFdBk:100 xtmemory.kcg > annot.log -``` - -# |