bisecting fixing commit since c2568c8c9e636a56abf31da4b28b65d3ded02524
building syzkaller on 1880b4a9f394370a7d1fcb5c1cfca0fa1127b463
testing commit c2568c8c9e636a56abf31da4b28b65d3ded02524 with gcc (GCC) 8.4.1 20210217
kernel signature: 455dd6a6bf56e7eaf4cfc88c61bb20612cb1e9a4aec8c68f359c1ef5e62e92eb
all runs: crashed: BUG: workqueue lockup
testing current HEAD 040806343bb4ef6365166eae666ced8a91b95321
testing commit 040806343bb4ef6365166eae666ced8a91b95321 with gcc (GCC) 10.2.1 20210217
kernel signature: ec1371591107e50e242a1eb0c426596094380adcaa704123e31ead8a250b4942
run #0: crashed: WARNING: can't access registers at asm_exc_page_fault
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
reproducer seems to be flaky
Reproducer flagged being flaky
revisions tested: 2, total time: 29m48.851980213s (build: 12m59.177807387s, test: 15m50.091853665s)
the crash still happens on HEAD
commit msg: selftests/net: so_txtime multi-host support
crash: WARNING: can't access registers at asm_exc_page_fault
WARNING: can't access registers at asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577