bisecting fixing commit since 06a4ec1d9dc652e17ee3ac2ceb6c7cf6c2b75cdd
building syzkaller on 424dd8e7b52828cad44ce653a5d4ac30670f5e2c
testing commit 06a4ec1d9dc652e17ee3ac2ceb6c7cf6c2b75cdd with gcc (GCC) 8.1.0
kernel signature: f7e5d9d3be443e667c26888124de9061d00ee769ac36c19623f41b434901e2c9
run #0: crashed: INFO: task hung in synchronize_rcu
run #1: crashed: INFO: task hung in synchronize_rcu
run #2: crashed: INFO: task hung in synchronize_rcu
run #3: crashed: INFO: task hung in synchronize_rcu
run #4: crashed: no output from test machine
run #5: crashed: no output from test machine
run #6: crashed: no output from test machine
run #7: crashed: no output from test machine
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
testing current HEAD c2e7554e1b85935d962127efa3c2a76483b0b3b6
testing commit c2e7554e1b85935d962127efa3c2a76483b0b3b6 with gcc (GCC) 8.1.0
kernel signature: 8fa99cfb04540c951133586fe355cc7208245151716960d4b2899c67f4ee4b59
run #0: crashed: INFO: task hung in synchronize_rcu
run #1: crashed: INFO: task hung in synchronize_rcu
run #2: crashed: no output from test machine
run #3: crashed: no output from test machine
run #4: crashed: no output from test machine
run #5: crashed: no output from test machine
run #6: crashed: no output from test machine
run #7: crashed: no output from test machine
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
revisions tested: 2, total time: 25m33.281012412s (build: 9m40.079240736s, test: 15m16.821816093s)
the crash still happens on HEAD
commit msg: Merge tag 'gfs2-v5.10-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
crash: no output from test machine