bisecting fixing commit since 13d2ce42de8cb98ff952f8de6307f896203854c2
building syzkaller on 821e0b09046a2f972ace26fbdc02aef1116792d4
testing commit 13d2ce42de8cb98ff952f8de6307f896203854c2 with gcc (GCC) 8.4.1 20210217
kernel signature: fbd9100f4aa31682502c30b5b25cc8807397ad69d97869e54c003ec8a00d00f0
run #0: crashed: BUG: corrupted list in kobject_add_internal
run #1: crashed: BUG: corrupted list in kobject_add_internal
run #2: crashed: BUG: corrupted list in kobject_add_internal
run #3: crashed: BUG: corrupted list in kobject_add_internal
run #4: crashed: BUG: corrupted list in kobject_add_internal
run #5: crashed: BUG: corrupted list in kobject_add_internal
run #6: crashed: BUG: corrupted list in kobject_add_internal
run #7: crashed: BUG: corrupted list in kobject_add_internal
run #8: crashed: BUG: corrupted list in kobject_add_internal
run #9: crashed: BUG: corrupted list in kobject_add_internal
run #10: crashed: BUG: corrupted list in kobject_add_internal
run #11: crashed: BUG: corrupted list in kobject_add_internal
run #12: crashed: BUG: corrupted list in kobject_add_internal
run #13: crashed: BUG: corrupted list in kobject_add_internal
run #14: crashed: BUG: corrupted list in kobject_add_internal
run #15: crashed: BUG: corrupted list in kobject_add_internal
run #16: crashed: BUG: corrupted list in kobject_add_internal
run #17: crashed: BUG: corrupted list in kobject_add_internal
run #18: crashed: general protection fault in klist_next
run #19: OK
testing current HEAD 2d19be4653f5e74ed95560b69f94eb6791d49af3
testing commit 2d19be4653f5e74ed95560b69f94eb6791d49af3 with gcc (GCC) 8.4.1 20210217
kernel signature: 1ded738fd78558a49af36f80ed47f7c69278de508474fdc2760e1e96b31fc6ef
run #0: crashed: BUG: corrupted list in kobject_add_internal
run #1: crashed: BUG: corrupted list in kobject_add_internal
run #2: crashed: BUG: corrupted list in kobject_add_internal
run #3: crashed: BUG: corrupted list in kobject_add_internal
run #4: crashed: BUG: corrupted list in kobject_add_internal
run #5: crashed: BUG: corrupted list in kobject_add_internal
run #6: crashed: BUG: corrupted list in kobject_add_internal
run #7: crashed: BUG: corrupted list in kobject_add_internal
run #8: crashed: BUG: corrupted list in kobject_add_internal
run #9: crashed: kernel panic: Fatal exception
revisions tested: 2, total time: 35m18.386282217s (build: 15m51.241645413s, test: 18m17.146810443s)
the crash still happens on HEAD
commit msg: Linux 4.19.177
crash: kernel panic: Fatal exception
FS:  0000000001b37400(0000) GS:ffff8880ba300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000464bdd CR3: 00000000b4177000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Kernel panic - not syncing: Fatal exception
Kernel Offset: disabled
Rebooting in 86400 seconds..