bisecting fixing commit since 2187f215ebaac73ddbd814696d7c7fa34f0c3de0
building syzkaller on 79b211f74b08737aeb4934c6ff69a263b3c38013
testing commit 2187f215ebaac73ddbd814696d7c7fa34f0c3de0 with gcc (GCC) 8.1.0
kernel signature: 9672314d20081fbd2ae61ab7c091f44b905d752b0f5cefab56860a0289ccd958
run #0: crashed: INFO: rcu detected stall in bad_area
run #1: crashed: INFO: rcu detected stall in bad_area
run #2: crashed: INFO: rcu detected stall in do_signal
run #3: crashed: INFO: rcu detected stall in bad_area
run #4: crashed: INFO: rcu detected stall in bad_area
run #5: crashed: INFO: rcu detected stall in do_signal
run #6: crashed: INFO: rcu detected stall in bad_area
run #7: crashed: INFO: rcu detected stall in __do_page_fault
run #8: crashed: INFO: rcu detected stall in do_signal
run #9: crashed: INFO: rcu detected stall in do_signal
testing current HEAD c2dc4c073fb71b50904493657a7622b481b346e3
testing commit c2dc4c073fb71b50904493657a7622b481b346e3 with gcc (GCC) 8.1.0
kernel signature: b5fdbb5be141e0ac0210212008ca2a801a3afc9c09acb81c1f888e08adb4bf1b
all runs: crashed: BUG: using __this_cpu_read() in preemptible code in trace_hardirqs_on
revisions tested: 2, total time: 20m23.242488634s (build: 11m44.360292145s, test: 7m36.887120728s)
the crash still happens on HEAD
commit msg: Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
crash: BUG: using __this_cpu_read() in preemptible code in trace_hardirqs_on
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on_prepare+0x33/0x1e0 kernel/locking/lockdep.c:4060
 trace_hardirqs_on+0x20/0x100 kernel/trace/trace_preemptirq.c:49
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010206
RAX: 0000000021000000 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: fe03f80fe03f80ff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on+0x39/0x120 kernel/locking/lockdep.c:4129
 trace_hardirqs_on+0x29/0x100 kernel/trace/trace_preemptirq.c:50
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010206
RAX: 0000000021000000 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: fe03f80fe03f80ff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on_prepare+0x33/0x1e0 kernel/locking/lockdep.c:4060
 trace_hardirqs_on+0x20/0x100 kernel/trace/trace_preemptirq.c:49
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010206
RAX: 0000000021000018 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 00007f537b9dea70 R09: 000000000075bf20
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on+0x39/0x120 kernel/locking/lockdep.c:4129
 trace_hardirqs_on+0x29/0x100 kernel/trace/trace_preemptirq.c:50
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010206
RAX: 0000000021000018 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 00007f537b9dea70 R09: 000000000075bf20
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on_prepare+0x33/0x1e0 kernel/locking/lockdep.c:4060
 trace_hardirqs_on+0x20/0x100 kernel/trace/trace_preemptirq.c:49
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010206
RAX: 0000000021000030 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 00007f537b9dea70 R09: 000000000075bf20
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on_prepare+0x33/0x1e0 kernel/locking/lockdep.c:4060
 trace_hardirqs_on+0x20/0x100 kernel/trace/trace_preemptirq.c:49
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010202
RAX: 0000000021513198 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 00007f537b9dea70 R09: 000000000075bf20
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on+0x39/0x120 kernel/locking/lockdep.c:4129
 trace_hardirqs_on+0x29/0x100 kernel/trace/trace_preemptirq.c:50
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010202
RAX: 0000000021513198 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 00007f537b9dea70 R09: 000000000075bf20
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on_prepare+0x33/0x1e0 kernel/locking/lockdep.c:4060
 trace_hardirqs_on+0x20/0x100 kernel/trace/trace_preemptirq.c:49
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010202
RAX: 00000000215131b0 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 00007f537b9dea70 R09: 000000000075bf20
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on+0x39/0x120 kernel/locking/lockdep.c:4129
 trace_hardirqs_on+0x29/0x100 kernel/trace/trace_preemptirq.c:50
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010202
RAX: 00000000215131b0 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 00007f537b9dea70 R09: 000000000075bf20
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff
BUG: using __this_cpu_read() in preemptible [00000000] code: syz-executor.4/7817
caller is __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
CPU: 1 PID: 7817 Comm: syz-executor.4 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xa9/0xd1 lib/dump_stack.c:118
 check_preemption_disabled+0xc4/0xe0 lib/smp_processor_id.c:48
 __this_cpu_preempt_check+0x13/0x20 lib/smp_processor_id.c:65
 lockdep_hardirqs_on_prepare+0x33/0x1e0 kernel/locking/lockdep.c:4060
 trace_hardirqs_on+0x20/0x100 kernel/trace/trace_preemptirq.c:49
 __bad_area_nosemaphore+0x62/0x1f0 arch/x86/mm/fault.c:797
 __bad_area arch/x86/mm/fault.c:856 [inline]
 bad_area+0x44/0x50 arch/x86/mm/fault.c:862
 do_user_addr_fault arch/x86/mm/fault.c:1345 [inline]
 handle_page_fault arch/x86/mm/fault.c:1429 [inline]
 exc_page_fault+0x5e2/0x700 arch/x86/mm/fault.c:1485
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583
RIP: 0033:0x4057e9
Code: d0 ff ff ff 01 48 8b 7c 24 28 c7 44 24 34 00 00 00 00 e8 4a d3 01 00 85 c0 75 23 48 6b 44 24 20 18 8b 7c 24 1c 48 03 44 24 38 <48> 8b 48 10 48 8b 50 08 48 8b 30 e8 e7 ee 00 00 89 44 24 34 64 f0
RSP: 002b:00007f537b9dea70 EFLAGS: 00010202
RAX: 00000000215131c8 RBX: 0000000000000007 RCX: 0000000000414717
RDX: 6a96ee0cc40f2aba RSI: 0000000000000000 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 00007f537b9dea70 R09: 000000000075bf20
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f537b9df6d4
R13: 00000000004caed8 R14: 00000000004e44f8 R15: 00000000ffffffff