Marc-André Lureau <marcandre.lur...@redhat.com> writes:
> Spotted by ASAN: > > QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 tests/bios-tables-test > -p /x86_64/acpi/piix4/cpuhp > /x86_64/acpi/piix4/cpuhp: Could not access KVM kernel module: No such file or > directory > qemu-system-x86_64: failed to initialize KVM: No such file or directory > qemu-system-x86_64: Back to tcg accelerator > ==21216==WARNING: ASan doesn't fully support makecontext/swapcontext > functions and may produce false positives in some cases! > > ================================================================= > ==21216==ERROR: LeakSanitizer: detected memory leaks > > Direct leak of 48 byte(s) in 1 object(s) allocated from: > #0 0x7f77c0668e50 in calloc (/lib64/libasan.so.5+0xeee50) > #1 0x7f77beb7b41d in g_malloc0 (/lib64/libglib-2.0.so.0+0x5241d) > #2 0x557f756df5bd in timer_new > /home/elmarco/src/qemu/include/qemu/timer.h:561 > #3 0x557f756df5ee in timer_new_ns > /home/elmarco/src/qemu/include/qemu/timer.h:584 > #4 0x557f756e4690 in start_tcg_kick_timer > /home/elmarco/src/qemu/cpus.c:965 > #5 0x557f756e64d7 in qemu_tcg_rr_wait_io_event > /home/elmarco/src/qemu/cpus.c:1210 > #6 0x557f756e90ad in qemu_tcg_rr_cpu_thread_fn > /home/elmarco/src/qemu/cpus.c:1536 > #7 0x557f76e9f233 in qemu_thread_start > /home/elmarco/src/qemu/util/qemu-thread-posix.c:504 > #8 0x7f77b4a11593 in start_thread (/lib64/libpthread.so.0+0x7593) I'm trying to reproduce to try the alternate approach but I can't get the full object backtraces: 14:56:08 [alex@zen:~/l/q/qemu.git] misc/tcg-timer-fix(1) 2 + env QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 tests/bios-tables-test -p /x86_64/acpi/piix4/cpuhp /x86_64/acpi/piix4/cpuhp: ==30510==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases! /home/alex/lsrc/qemu/qemu.git/include/qemu/rcu.h:78:21: runtime error: member access within null pointer of type 'struct rcu_reader_data' /home/alex/lsrc/qemu/qemu.git/include/qemu/rcu.h:93:5: runtime error: member access within null pointer of type 'struct rcu_reader_data' /home/alex/lsrc/qemu/qemu.git/include/qemu/rcu.h:94:8: runtime error: member access within null pointer of type 'struct rcu_reader_data' /home/alex/lsrc/qemu/qemu.git/include/qemu/rcu.h:93:5: runtime error: member access within null pointer of type 'struct rcu_reader_data' OK What is your configure setup? -- Alex Bennée
