ci starts bisection 2023-05-31 13:52:54.021499005 +0000 UTC m=+1930.696791985
bisecting fixing commit since 58390c8ce1bddb6c623f62e7ed36383e7fa5c02f
building syzkaller on 62df2017e3b1edd786a4c737bd4ccba2b4581d88
ensuring issue is reproducible on original commit 58390c8ce1bddb6c623f62e7ed36383e7fa5c02f

testing commit 58390c8ce1bddb6c623f62e7ed36383e7fa5c02f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: e0c270613c25e5604724e0cdb973350316142035ecfd95a106d636cc3da572f2
all runs: crashed: WARNING in iommufd_test
testing current HEAD 48b1320a674e1ff5de2fad8606bee38f724594dc
testing commit 48b1320a674e1ff5de2fad8606bee38f724594dc gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 6e75b844f31d4b4fe5a21afdf7573d359e6740c99c48f2bf44296dbdc5d49fa8
all runs: crashed: WARNING in iommufd_test
crash still not fixed/happens on the oldest tested release
revisions tested: 2, total time: 23m46.35906426s (build: 17m6.166022735s, test: 6m10.874051856s)
crash still not fixed on HEAD or HEAD had kernel test errors
commit msg: Merge tag 'for-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
crash: WARNING in iommufd_test
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5439 at drivers/iommu/iommufd/selftest.c:762 iommufd_test_check_pages drivers/iommu/iommufd/selftest.c:762 [inline]
WARNING: CPU: 1 PID: 5439 at drivers/iommu/iommufd/selftest.c:762 iommufd_test_access_pages drivers/iommu/iommufd/selftest.c:831 [inline]
WARNING: CPU: 1 PID: 5439 at drivers/iommu/iommufd/selftest.c:762 iommufd_test+0x168c/0x2680 drivers/iommu/iommufd/selftest.c:964
Modules linked in:
CPU: 1 PID: 5439 Comm: syz-executor.0 Not tainted 6.4.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:iommufd_test_check_pages drivers/iommu/iommufd/selftest.c:762 [inline]
RIP: 0010:iommufd_test_access_pages drivers/iommu/iommufd/selftest.c:831 [inline]
RIP: 0010:iommufd_test+0x168c/0x2680 drivers/iommu/iommufd/selftest.c:964
Code: 0f 84 7c 04 00 00 31 d2 4c 89 e9 be 01 00 00 00 4c 89 e7 e8 66 c3 73 fd 48 63 d0 48 85 d2 0f 88 05 09 00 00 48 83 fa 01 74 8e <0f> 0b 41 be f2 ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24
RSP: 0018:ffffc900043ffcf0 EFLAGS: 00010297
RAX: 0000000000000000 RBX: 0000000000000f7b RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff896ba880 RDI: fffffffffffff000
RBP: ffff888016a795f0 R08: 0000000000000000 R09: ffffffff8d68d2d7
R10: fffffbfff1ad1a5a R11: 1ffffffff1f7a774 R12: ffffffffffffff7b
R13: ffffc900043ffd78 R14: 0000000000000000 R15: ffffc900043ffe58
FS:  00007fc0d7403700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe5b521fe8 CR3: 000000002056b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 iommufd_fops_ioctl+0x26f/0x3b0 drivers/iommu/iommufd/main.c:337
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x123/0x190 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc0d668c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc0d7403168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc0d67abf80 RCX: 00007fc0d668c169
RDX: 0000000020000280 RSI: 0000000000003ba0 RDI: 0000000000000004
RBP: 00007fc0d66e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6752806f R14: 00007fc0d7403300 R15: 0000000000022000
 </TASK>