ci starts bisection 2023-06-10 17:14:00.014905392 +0000 UTC m=+287352.303332274 bisecting fixing commit since 825a0714d2b3883d4f8ff64f6933fb73ee3f1834 building syzkaller on 62df2017e3b1edd786a4c737bd4ccba2b4581d88 ensuring issue is reproducible on original commit 825a0714d2b3883d4f8ff64f6933fb73ee3f1834 testing commit 825a0714d2b3883d4f8ff64f6933fb73ee3f1834 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ba9c7475907c1bb3e38d6f209c3e0b8a0b7d3f76b6d4be9b3285f990e0367909 all runs: crashed: WARNING in iommufd_test_check_pages testing current HEAD 64569520920a3ca5d456ddd9f4f95fc6ea9b8b45 testing commit 64569520920a3ca5d456ddd9f4f95fc6ea9b8b45 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 2cfb111bd5e1e6ccb1bfebb39c4510ed088a6761817f687182c3cdb6275a138d all runs: crashed: WARNING in iommufd_test_check_pages crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 26m55.981343936s (build: 19m19.473926547s, test: 6m31.06278352s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Merge tag 'block-6.4-2023-06-09' of git://git.kernel.dk/linux crash: WARNING in iommufd_test_check_pages ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5420 at drivers/iommu/iommufd/selftest.c:762 iommufd_test_check_pages+0x196/0x1b0 drivers/iommu/iommufd/selftest.c:771 Modules linked in: CPU: 1 PID: 5420 Comm: syz-executor.0 Not tainted 6.4.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:iommufd_test_check_pages+0x196/0x1b0 drivers/iommu/iommufd/selftest.c:762 Code: 36 e0 45 49 c7 04 0e 00 00 00 00 65 48 8b 0c 25 28 00 00 00 48 3b 4c 24 60 75 18 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b b8 f2 ff ff ff eb c2 e8 4c 79 4e 05 66 2e 0f 1f 84 00 00 00 RSP: 0018:ffffc90004c77ba0 EFLAGS: 00010297 RAX: 0000000000000000 RBX: ffffc90004c77be0 RCX: 50b9b34b08e2cd00 RDX: 0000000000000002 RSI: ffffffff89ea9201 RDI: ffffffff8a3835c0 RBP: ffffc90004c77c50 R08: dffffc0000000000 R09: fffffbfff1a7ee16 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888016653938 R13: ffffffffffffff7b R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f183fec5700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f183f0df360 CR3: 0000000073991000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iommufd_test_access_pages drivers/iommu/iommufd/selftest.c:831 [inline] iommufd_test+0x198a/0x2380 drivers/iommu/iommufd/selftest.c:964 iommufd_fops_ioctl+0x3bc/0x480 drivers/iommu/iommufd/main.c:337 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xa7/0xf0 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f183f08c169 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:00007f183fec5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f183f1abf80 RCX: 00007f183f08c169 RDX: 0000000020000280 RSI: 0000000000003ba0 RDI: 0000000000000004 RBP: 00007f183f0e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff3f00ca6f R14: 00007f183fec5300 R15: 0000000000022000