bisecting fixing commit since 1e43c377a79f9189fea8f2711b399d4e8b4e609b building syzkaller on 6a81331a1d4c744da9204d02ec88d558f7eea9c9 testing commit 1e43c377a79f9189fea8f2711b399d4e8b4e609b with gcc (GCC) 10.2.1 20210217 kernel signature: 59743f37457fb8a6c1f1487c6f223e827ee3ad64b0b8087670f90649564015d8 run #0: OK run #1: crashed: WARNING in timer_wait_running run #2: crashed: WARNING in timer_wait_running run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK reproducer seems to be flaky testing current HEAD 50be9417e23af5a8ac860d998e1e3f06b8fd79d7 testing commit 50be9417e23af5a8ac860d998e1e3f06b8fd79d7 with gcc (GCC) 10.2.1 20210217 kernel signature: 68de9a64c2c58ebad334bbe66f75d359af71cbb23fc270b1cc9e39ea16900177 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0) Reproducer flagged being flaky revisions tested: 2, total time: 40m58.66465438s (build: 16m35.821194869s, test: 23m30.297964059s) bisection is inconclusive, the first good commit could be any of: 1e43c377a79f9189fea8f2711b399d4e8b4e609b 50be9417e23af5a8ac860d998e1e3f06b8fd79d7