diff options
Diffstat (limited to 'results/classifier/zero-shot-user-mode/output/runtime/866')
| -rw-r--r-- | results/classifier/zero-shot-user-mode/output/runtime/866 | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/results/classifier/zero-shot-user-mode/output/runtime/866 b/results/classifier/zero-shot-user-mode/output/runtime/866 deleted file mode 100644 index 18cec591..00000000 --- a/results/classifier/zero-shot-user-mode/output/runtime/866 +++ /dev/null @@ -1,59 +0,0 @@ -runtime: 0.454 -syscall: 0.313 -instruction: 0.232 - - - -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 -``` - -# |