ci starts bisection 2023-05-02 22:40:33.188294847 +0000 UTC m=+27999.735864395 bisecting cause commit starting from c8c655c34e33544aec9d64b660872ab33c29b5f1 building syzkaller on 62df2017e3b1edd786a4c737bd4ccba2b4581d88 ensuring issue is reproducible on original commit c8c655c34e33544aec9d64b660872ab33c29b5f1 testing commit c8c655c34e33544aec9d64b660872ab33c29b5f1 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b50a52ec03910d14aab82760c273c97ee0a6a39885f74c7ae98ff9619c696fd9 run #0: crashed: INFO: task hung in queue_log_writer run #1: crashed: INFO: task hung in queue_log_writer run #2: crashed: INFO: task hung in queue_log_writer run #3: crashed: INFO: task hung in queue_log_writer run #4: crashed: INFO: task hung in queue_log_writer run #5: crashed: INFO: task hung in queue_log_writer run #6: crashed: INFO: task hung in queue_log_writer run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: INFO: task hung in queue_log_writer run #9: crashed: INFO: task hung in queue_log_writer run #10: crashed: INFO: task hung in queue_log_writer run #11: crashed: INFO: task hung in queue_log_writer run #12: crashed: INFO: task hung in queue_log_writer run #13: crashed: INFO: task hung in queue_log_writer run #14: crashed: INFO: task hung in queue_log_writer run #15: crashed: INFO: task hung in queue_log_writer run #16: crashed: INFO: task hung in queue_log_writer run #17: crashed: INFO: task hung in queue_log_writer run #18: OK run #19: OK testing release v6.3 testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ef2a3d342d6a20a1d4bd03d3ca243d777315483cc802b6ca9a4e472c46d9abe0 run #0: crashed: WARNING: locking bug in take_dentry_name_snapshot run #1: crashed: KASAN: wild-memory-access Read in take_dentry_name_snapshot run #2: crashed: WARNING: locking bug in take_dentry_name_snapshot run #3: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #4: crashed: WARNING: locking bug in take_dentry_name_snapshot run #5: crashed: INFO: task hung in queue_log_writer run #6: crashed: INFO: task hung in queue_log_writer run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: INFO: task hung in queue_log_writer run #9: crashed: KASAN: wild-memory-access Read in take_dentry_name_snapshot testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 91342274e6d1edb406f5e8c8a9d4134700a33c6add70ea3dba1109a1a5cf4cfe run #0: crashed: WARNING: locking bug in take_dentry_name_snapshot run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #7: crashed: kernel BUG in do_journal_begin_r run #8: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #9: crashed: INFO: task hung in queue_log_writer testing release v6.1 testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 84dea7b034dfba3ac4a77030e95d43267218b1e005fe5d0fcde6ea0ca435462c run #0: crashed: kernel BUG in do_journal_begin_r run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: INFO: task hung in queue_log_writer run #9: crashed: INFO: task hung in queue_log_writer testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4194fece75a9050afd3fbfb43461c0b05bd473fcfe4cd7d1872dca4b2c99f22b run #0: crashed: kernel BUG in do_journal_begin_r run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: kernel BUG in do_journal_begin_r run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: kernel BUG in do_journal_begin_r testing release v5.19 testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 766ee9e61b2cd0ae75fd8068959c87d484e088ce85923a4d7abb5ed3d0a934d1 run #0: crashed: kernel BUG in do_journal_begin_r run #1: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #2: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #3: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #4: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #5: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #6: crashed: INFO: task hung in queue_log_writer run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: kernel BUG in do_journal_begin_r run #9: crashed: INFO: task hung in queue_log_writer testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ea2d58e2327bb0dcde9c9377bbe900d0982cda8f97428349b3d0f8b090487d63 run #0: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #1: crashed: kernel BUG in do_journal_begin_r run #2: crashed: kernel BUG in do_journal_begin_r run #3: crashed: BUG: spinlock bad magic in take_dentry_name_snapshot run #4: crashed: KASAN: global-out-of-bounds Read in take_dentry_name_snapshot run #5: crashed: INFO: task hung in queue_log_writer run #6: crashed: kernel BUG in do_journal_begin_r run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: INFO: task hung in queue_log_writer run #9: crashed: INFO: task hung in queue_log_writer testing release v5.17 testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 8addda381aef5c7bace823112b9eaf6b94e48d4469c5c779b7ac8e352756cfd3 run #0: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #1: crashed: kernel BUG in do_journal_begin_r run #2: crashed: kernel BUG in do_journal_begin_r run #3: crashed: INFO: task hung in queue_log_writer run #4: crashed: INFO: task hung in queue_log_writer run #5: crashed: INFO: task hung in queue_log_writer run #6: crashed: kernel BUG in do_journal_begin_r run #7: crashed: kernel BUG in do_journal_begin_r run #8: crashed: INFO: task hung in queue_log_writer run #9: crashed: INFO: task hung in queue_log_writer testing release v5.16 testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: a2778a2b2bbc1ecddd02e594f15d8c0858f8650c731f996eab515e920e0aea4e run #0: crashed: kernel BUG in do_journal_begin_r run #1: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #2: crashed: INFO: task hung in queue_log_writer run #3: crashed: INFO: task hung in queue_log_writer run #4: crashed: INFO: task hung in queue_log_writer run #5: crashed: INFO: task hung in queue_log_writer run #6: crashed: INFO: task hung in queue_log_writer run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: kernel BUG in do_journal_begin_r run #9: crashed: kernel BUG in do_journal_begin_r testing release v5.15 testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: a190d954f8baa7f731f59022be9fd99ba761985e6147027ba09d2c1473a0bd72 run #0: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #1: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #2: crashed: kernel BUG in do_journal_begin_r run #3: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #4: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #5: crashed: kernel BUG in do_journal_begin_r run #6: crashed: INFO: task hung in queue_log_writer run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: INFO: task hung in queue_log_writer run #9: crashed: INFO: task hung in queue_log_writer testing release v5.14 testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 04965f38feff136c53e7ea1d3c54331a2a48b39257d04aeda12da321cd1d44b9 run #0: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #1: crashed: WARNING in reiserfs_put_super run #2: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #3: crashed: WARNING in reiserfs_put_super run #4: crashed: WARNING in reiserfs_put_super run #5: crashed: kernel BUG in do_journal_begin_r run #6: crashed: INFO: task hung in queue_log_writer run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: INFO: task hung in queue_log_writer run #9: crashed: INFO: task hung in queue_log_writer testing release v5.13 testing commit 62fb9874f5da54fdb243003b386128037319b219 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ba9626dd8149cbbcfaf3b11a89fdcbda89170774c958f6b8b52f359a567531af run #0: crashed: WARNING in reiserfs_put_super run #1: crashed: WARNING in reiserfs_put_super run #2: crashed: WARNING: locking bug in take_dentry_name_snapshot run #3: crashed: BUG: unable to handle kernel paging request in take_dentry_name_snapshot run #4: crashed: WARNING in reiserfs_put_super run #5: crashed: INFO: task hung in queue_log_writer run #6: crashed: INFO: task hung in queue_log_writer run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: INFO: task hung in queue_log_writer run #9: crashed: INFO: task hung in queue_log_writer testing release v5.12 testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4a4fbc685c41d6b0ac5fde8d3b297fe0f890160e8ff7c3eb28020bd5ac454b71 run #0: crashed: WARNING in reiserfs_put_super run #1: crashed: BUG: unable to handle kernel paging request in vfs_removexattr run #2: crashed: WARNING in reiserfs_put_super run #3: crashed: WARNING in reiserfs_put_super run #4: crashed: WARNING in reiserfs_put_super run #5: crashed: WARNING in reiserfs_put_super run #6: crashed: WARNING in reiserfs_put_super run #7: crashed: INFO: task hung in queue_log_writer run #8: crashed: kernel BUG in do_journal_begin_r run #9: crashed: WARNING in reiserfs_put_super testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: a436731bc28ba34acf72fc1125c4cdfc77cb4887919cfcebf6eca50e8b0429dc all runs: crashed: general protection fault in reiserfs_security_init testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 322d10227d74ec5cbe368f8bbedcbe4eb7b939ca6b91635c2980db694574f044 all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 95b33e148c66f443ec12fb51101aa9284b4b5671ff21058be69f92caa7c8ac0b all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: fbb3bcff502e8cda18cbe2457fcd4bb7e79bccff8fa864f8c9c562d86fbd3be5 all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 gcc compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 370ef5e24f522d94ac230cab75454b8c4723f3eb67a15bf7563abf21d643a84d all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 24610e0274d89de93982b62551e478ef388a5e160c4a6675a107f6c311a36770 all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 523c26aec4cd680ca2ea11b3462c73f115383468ccf4ef83e17961eafe87e433 all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: fadd11df12241cfb6143c122ee0c18f62a3d241fbeee9a7c6f1b25a0db17f730 all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: c7ce690c36796cb30094afb54eeb567e44518fe4282cef0a064550eded60eb63 all runs: boot failed: BUG: spinlock bad magic in nf_connlabels_get testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: f5550d0ab612e07f41d5e31568416260f552adde5348f9643fcd0f5c1020abe0 all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 8820a6e5203e0117a20e0d0bfb16c80faf3383bad359a94f45e26d2aff26c3dc all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 320044c49a3d6aa31c9ab46e173ae668948ef6ad087ec5dfc58686c26159c2e4 all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 807230cecb088e0cba28f1071aae86662a4858c42b6ac94f17a084dcb8adf19b all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: ef2dc3a16287000cc06d490e1e1e12c2b99bbddc7c103f4e397b329a4d931ff0 all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns revisions tested: 27, total time: 7h52m15.589660361s (build: 5h33m5.400293813s, test: 2h12m36.97290371s) the crash already happened on the oldest tested release commit msg: Linux 5.11 crash: general protection fault in reiserfs_security_init REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop4): checking transaction log (loop4) REISERFS (device loop4): Using r5 hash to sort names general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] CPU: 1 PID: 6058 Comm: syz-executor.4 Not tainted 5.11.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:d_really_is_negative include/linux/dcache.h:473 [inline] RIP: 0010:reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:78 [inline] RIP: 0010:reiserfs_security_init+0x218/0x480 fs/reiserfs/xattr_security.c:70 Code: 48 c1 e9 03 80 3c 11 00 0f 85 31 02 00 00 48 8b 9b a0 05 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d 7b 68 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 e5 01 00 00 4c 01 c0 48 83 7b 68 00 74 03 4c 89 RSP: 0018:ffffc9000198f968 EFLAGS: 00010212 RAX: 0000000000000036 RBX: 0000000000000000 RCX: 000000000000000d RDX: dffffc0000000000 RSI: 0000000000280202 RDI: 0000000000000068 RBP: ffff88802f703608 R08: 000000000000006c R09: ffffc9000198fa08 R10: ffffed1006e99035 R11: 0000000000000001 R12: ffff8880374c87a0 R13: ffff888030c8c000 R14: 0000000000000000 R15: ffff8880374c8620 FS: 00007fa18426f700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa184270000 CR3: 0000000015a96000 CR4: 0000000000350ee0 Call Trace: reiserfs_mkdir+0x280/0x860 fs/reiserfs/namei.c:821 create_privroot fs/reiserfs/xattr.c:889 [inline] reiserfs_xattr_init+0x412/0xa60 fs/reiserfs/xattr.c:1011 reiserfs_fill_super+0x1c53/0x2670 fs/reiserfs/super.c:2177 mount_bdev+0x2cb/0x3b0 fs/super.c:1366 legacy_get_tree+0xfa/0x1f0 fs/fs_context.c:592 vfs_get_tree+0x7f/0x2c0 fs/super.c:1496 do_new_mount fs/namespace.c:2881 [inline] path_mount+0x7f3/0x1b30 fs/namespace.c:3211 do_mount fs/namespace.c:3224 [inline] __do_sys_mount fs/namespace.c:3432 [inline] __se_sys_mount fs/namespace.c:3409 [inline] __x64_sys_mount+0x1f5/0x260 fs/namespace.c:3409 do_syscall_64+0x2d/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fa184efe69a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007fa18426ef88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000010ee RCX: 00007fa184efe69a RDX: 0000000020001100 RSI: 0000000020001140 RDI: 00007fa18426efe0 RBP: 00007fa18426f020 R08: 00007fa18426f020 R09: 0000000000010080 R10: 0000000000010080 R11: 0000000000000246 R12: 0000000020001100 R13: 0000000020001140 R14: 00007fa18426efe0 R15: 0000000020000340 Modules linked in: ---[ end trace 567f938d71c060dd ]--- RIP: 0010:d_really_is_negative include/linux/dcache.h:473 [inline] RIP: 0010:reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:78 [inline] RIP: 0010:reiserfs_security_init+0x218/0x480 fs/reiserfs/xattr_security.c:70 Code: 48 c1 e9 03 80 3c 11 00 0f 85 31 02 00 00 48 8b 9b a0 05 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d 7b 68 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 e5 01 00 00 4c 01 c0 48 83 7b 68 00 74 03 4c 89 RSP: 0018:ffffc9000198f968 EFLAGS: 00010212 RAX: 0000000000000036 RBX: 0000000000000000 RCX: 000000000000000d RDX: dffffc0000000000 RSI: 0000000000280202 RDI: 0000000000000068 RBP: ffff88802f703608 R08: 000000000000006c R09: ffffc9000198fa08 R10: ffffed1006e99035 R11: 0000000000000001 R12: ffff8880374c87a0 R13: ffff888030c8c000 R14: 0000000000000000 R15: ffff8880374c8620 FS: 00007fa18426f700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ea7485b680 CR3: 0000000015a96000 CR4: 0000000000350ee0 ---------------- Code disassembly (best guess): 0: 48 c1 e9 03 shr $0x3,%rcx 4: 80 3c 11 00 cmpb $0x0,(%rcx,%rdx,1) 8: 0f 85 31 02 00 00 jne 0x23f e: 48 8b 9b a0 05 00 00 mov 0x5a0(%rbx),%rbx 15: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 1c: fc ff df 1f: 48 8d 7b 68 lea 0x68(%rbx),%rdi 23: 48 89 f9 mov %rdi,%rcx 26: 48 c1 e9 03 shr $0x3,%rcx * 2a: 80 3c 11 00 cmpb $0x0,(%rcx,%rdx,1) <-- trapping instruction 2e: 0f 85 e5 01 00 00 jne 0x219 34: 4c 01 c0 add %r8,%rax 37: 48 83 7b 68 00 cmpq $0x0,0x68(%rbx) 3c: 74 03 je 0x41 3e: 4c rex.WR 3f: 89 .byte 0x89