Just started using tkperf/fio, and am the system crashes: Running TKperf: sudo tkperf ssd toshiba1 /dev/sdb ubuntu 16.04 LTS Memory 5.8GiB Processor Intel® Xeon(TM) CPU 3.00GHz × 4 Graphics R100 (RV100 5159) DRI2 OS type 64-bit Disk 240.6 GB uname -a Linux drivequal6 4.4.0-24-generic #43-Ubuntu SMP Wed Jun 8 19:27:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux fio --version fio-2.2.10 tail toshiba.log INFO:root:###### INFO:root:################# INFO:root:Round nr. 4 INFO:root:['/usr/bin/fio', '--rw=randrw', '--name=toshiba1', '--bs=8k', '--direct=1', '--filename=/dev/sdb', '--rwmixread=100', '--numjobs=1', '--ioengine=libaio', '--runtime=60', '--iodepth=1', '--minimal', '--time_based', '--group_reporting'] INFO:root:mixLoad: 100 INFO:root:bs: 8k INFO:root: INFO:root:###### ++++++++++++++ syslog output: Jun 27 12:02:14 qual6 org.debian.apt[1424]: 12:02:14 AptDaemon.Worker [INFO]: Finished transaction /org/debian/apt/transaction/ Jun 27 12:02:44 qual6 kernel: [ 1939.769050] swap_free: Bad swap offset entry 8641b9fff80 Jun 27 12:02:44 qual6 kernel: [ 1939.769059] BUG: Bad page map in process fio pte:10c8373fff0040 pmd:335c5067 Jun 27 12:02:44 qual6 kernel: [ 1939.769063] addr:00007ff321a00000 vm_flags:080000fb anon_vma: (null) mapping:ffff880196cc8e90 index:3ab2 Jun 27 12:02:44 qual6 kernel: [ 1939.769073] file:SYSV00000000 fault:shm_fault mmap:shm_mmap readpage: (null) Jun 27 12:02:44 qual6 kernel: [ 1939.769078] CPU: 0 PID: 3005 Comm: fio Not tainted 4.4.0-24-generic #43-Ubuntu Jun 27 12:02:44 qual6 kernel: [ 1939.769081] Hardware name: Dell Computer Corporation PowerEdge 1800/0P8611, BIOS A07 09/29/2006 Jun 27 12:02:44 qual6 kernel: [ 1939.769084] 0000000000000286 0000000063f6c1a4 ffff880196f97c38 ffffffff813eab23 Jun 27 12:02:44 qual6 kernel: [ 1939.769090] 00007ff321a00000 ffff880196eb2578 ffff880196f97c88 ffffffff811bc32f Jun 27 12:02:44 qual6 kernel: [ 1939.769095] ffff880196f97c60 ffffffff811d33e0 000008641b9fff80 0010c8373fff0040 Jun 27 12:02:44 qual6 kernel: [ 1939.769099] Call Trace: Jun 27 12:02:44 qual6 kernel: [ 1939.769109] [<ffffffff813eab23>] dump_stack+0x63/0x90 Jun 27 12:02:44 qual6 kernel: [ 1939.769115] [<ffffffff811bc32f>] print_bad_pte+0x1df/0x2a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769121] [<ffffffff811d33e0>] ? swap_info_get+0xb0/0xd0 Jun 27 12:02:44 qual6 kernel: [ 1939.769125] [<ffffffff811bdcb8>] unmap_page_range+0x468/0x7a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769129] [<ffffffff811be06d>] unmap_single_vma+0x7d/0xe0 Jun 27 12:02:44 qual6 kernel: [ 1939.769133] [<ffffffff811beb31>] unmap_vmas+0x51/0xa0 Jun 27 12:02:44 qual6 kernel: [ 1939.769136] [<ffffffff811c45bc>] unmap_region+0xac/0x120 Jun 27 12:02:44 qual6 kernel: [ 1939.769141] [<ffffffff81223cd0>] ? __dentry_kill+0x160/0x1e0 Jun 27 12:02:44 qual6 kernel: [ 1939.769145] [<ffffffff811c6aca>] do_munmap+0x28a/0x480 Jun 27 12:02:44 qual6 kernel: [ 1939.769149] [<ffffffff8132c9d2>] SyS_shmdt+0xb2/0x170 Jun 27 12:02:44 qual6 kernel: [ 1939.769156] [<ffffffff81825bf2>] entry_SYSCALL_64_fastpath+0x16/0x71 Jun 27 12:02:44 qual6 kernel: [ 1939.769159] Disabling lock debugging due to kernel taint Jun 27 12:02:44 qual6 kernel: [ 1939.769161] swap_free: Bad swap offset entry 1f800000 Jun 27 12:02:44 qual6 kernel: [ 1939.769164] BUG: Bad page map in process fio pte:3f00000000 pmd:335c5067 Jun 27 12:02:44 qual6 kernel: [ 1939.769167] addr:00007ff321a01000 vm_flags:080000fb anon_vma: (null) mapping:ffff880196cc8e90 index:3ab3 Jun 27 12:02:44 qual6 kernel: [ 1939.769172] file:SYSV00000000 fault:shm_fault mmap:shm_mmap readpage: (null) Jun 27 12:02:44 qual6 kernel: [ 1939.769175] CPU: 0 PID: 3005 Comm: fio Tainted: G B 4.4.0-24-generic #43-Ubuntu Jun 27 12:02:44 qual6 kernel: [ 1939.769178] Hardware name: Dell Computer Corporation PowerEdge 1800/0P8611, BIOS A07 09/29/2006 Jun 27 12:02:44 qual6 kernel: [ 1939.769180] 0000000000000286 0000000063f6c1a4 ffff880196f97c38 ffffffff813eab23 Jun 27 12:02:44 qual6 kernel: [ 1939.769184] 00007ff321a01000 ffff880196eb2578 ffff880196f97c88 ffffffff811bc32f Jun 27 12:02:44 qual6 kernel: [ 1939.769188] ffff880196f97c60 ffffffff811d33e0 000000001f800000 0000003f00000000 Jun 27 12:02:44 qual6 kernel: [ 1939.769192] Call Trace: Jun 27 12:02:44 qual6 kernel: [ 1939.769196] [<ffffffff813eab23>] dump_stack+0x63/0x90 Jun 27 12:02:44 qual6 kernel: [ 1939.769200] [<ffffffff811bc32f>] print_bad_pte+0x1df/0x2a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769204] [<ffffffff811d33e0>] ? swap_info_get+0xb0/0xd0 Jun 27 12:02:44 qual6 kernel: [ 1939.769208] [<ffffffff811bdcb8>] unmap_page_range+0x468/0x7a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769212] [<ffffffff811be06d>] unmap_single_vma+0x7d/0xe0 Jun 27 12:02:44 qual6 kernel: [ 1939.769216] [<ffffffff811beb31>] unmap_vmas+0x51/0xa0 Jun 27 12:02:44 qual6 kernel: [ 1939.769219] [<ffffffff811c45bc>] unmap_region+0xac/0x120 Jun 27 12:02:44 qual6 kernel: [ 1939.769223] [<ffffffff81223cd0>] ? __dentry_kill+0x160/0x1e0 Jun 27 12:02:44 qual6 kernel: [ 1939.769226] [<ffffffff811c6aca>] do_munmap+0x28a/0x480 Jun 27 12:02:44 qual6 kernel: [ 1939.769230] [<ffffffff8132c9d2>] SyS_shmdt+0xb2/0x170 Jun 27 12:02:44 qual6 kernel: [ 1939.769234] [<ffffffff81825bf2>] entry_SYSCALL_64_fastpath+0x16/0x71 Jun 27 12:02:44 qual6 kernel: [ 1939.769237] swap_free: Bad swap offset entry 10101010000000 Jun 27 12:02:44 qual6 kernel: [ 1939.769240] BUG: Bad page map in process fio pte:2020202000000000 pmd:335c5067 Jun 27 12:02:44 qual6 kernel: [ 1939.769243] addr:00007ff321a02000 vm_flags:080000fb anon_vma: (null) mapping:ffff880196cc8e90 index:3ab4 Jun 27 12:02:44 qual6 kernel: [ 1939.769247] file:SYSV00000000 fault:shm_fault mmap:shm_mmap readpage: (null) Jun 27 12:02:44 qual6 kernel: [ 1939.769251] CPU: 0 PID: 3005 Comm: fio Tainted: G B 4.4.0-24-generic #43-Ubuntu Jun 27 12:02:44 qual6 kernel: [ 1939.769253] Hardware name: Dell Computer Corporation PowerEdge 1800/0P8611, BIOS A07 09/29/2006 Jun 27 12:02:44 qual6 kernel: [ 1939.769255] 0000000000000286 0000000063f6c1a4 ffff880196f97c38 ffffffff813eab23 Jun 27 12:02:44 qual6 kernel: [ 1939.769259] 00007ff321a02000 ffff880196eb2578 ffff880196f97c88 ffffffff811bc32f Jun 27 12:02:44 qual6 kernel: [ 1939.769263] ffff880196f97c60 ffffffff811d33e0 0010101010000000 2020202000000000 Jun 27 12:02:44 qual6 kernel: [ 1939.769267] Call Trace: Jun 27 12:02:44 qual6 kernel: [ 1939.769271] [<ffffffff813eab23>] dump_stack+0x63/0x90 Jun 27 12:02:44 qual6 kernel: [ 1939.769275] [<ffffffff811bc32f>] print_bad_pte+0x1df/0x2a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769279] [<ffffffff811d33e0>] ? swap_info_get+0xb0/0xd0 Jun 27 12:02:44 qual6 kernel: [ 1939.769283] [<ffffffff811bdcb8>] unmap_page_range+0x468/0x7a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769287] [<ffffffff811be06d>] unmap_single_vma+0x7d/0xe0 Jun 27 12:02:44 qual6 kernel: [ 1939.769290] [<ffffffff811beb31>] unmap_vmas+0x51/0xa0 Jun 27 12:02:44 qual6 kernel: [ 1939.769293] [<ffffffff811c45bc>] unmap_region+0xac/0x120 Jun 27 12:02:44 qual6 kernel: [ 1939.769297] [<ffffffff81223cd0>] ? __dentry_kill+0x160/0x1e0 Jun 27 12:02:44 qual6 kernel: [ 1939.769300] [<ffffffff811c6aca>] do_munmap+0x28a/0x480 Jun 27 12:02:44 qual6 kernel: [ 1939.769304] [<ffffffff8132c9d2>] SyS_shmdt+0xb2/0x170 Jun 27 12:02:44 qual6 kernel: [ 1939.769308] [<ffffffff81825bf2>] entry_SYSCALL_64_fastpath+0x16/0x71 Jun 27 12:02:44 qual6 kernel: [ 1939.769311] swap_free: Bad swap file entry 201a29ac1a901010 Jun 27 12:02:44 qual6 kernel: [ 1939.769314] BUG: Bad page map in process fio pte:3453583520202020 pmd:335c5067 Jun 27 12:02:44 qual6 kernel: [ 1939.769317] addr:00007ff321a03000 vm_flags:080000fb anon_vma: (null) mapping:ffff880196cc8e90 index:3ab5 Jun 27 12:02:44 qual6 kernel: [ 1939.769321] file:SYSV00000000 fault:shm_fault mmap:shm_mmap readpage: (null) Jun 27 12:02:44 qual6 kernel: [ 1939.769324] CPU: 0 PID: 3005 Comm: fio Tainted: G B 4.4.0-24-generic #43-Ubuntu Jun 27 12:02:44 qual6 kernel: [ 1939.769327] Hardware name: Dell Computer Corporation PowerEdge 1800/0P8611, BIOS A07 09/29/2006 Jun 27 12:02:44 qual6 kernel: [ 1939.769329] 0000000000000286 0000000063f6c1a4 ffff880196f97c38 ffffffff813eab23 Jun 27 12:02:44 qual6 kernel: [ 1939.769333] 00007ff321a03000 ffff880196eb2578 ffff880196f97c88 ffffffff811bc32f Jun 27 12:02:44 qual6 kernel: [ 1939.769337] ffff880196f97c60 ffffffff811d33ac 201a29ac1a901010 3453583520202020 Jun 27 12:02:44 qual6 kernel: [ 1939.769341] Call Trace: Jun 27 12:02:44 qual6 kernel: [ 1939.769345] [<ffffffff813eab23>] dump_stack+0x63/0x90 Jun 27 12:02:44 qual6 kernel: [ 1939.769349] [<ffffffff811bc32f>] print_bad_pte+0x1df/0x2a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769353] [<ffffffff811d33ac>] ? swap_info_get+0x7c/0xd0 Jun 27 12:02:44 qual6 kernel: [ 1939.769357] [<ffffffff811bdcb8>] unmap_page_range+0x468/0x7a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769361] [<ffffffff811be06d>] unmap_single_vma+0x7d/0xe0 Jun 27 12:02:44 qual6 kernel: [ 1939.769364] [<ffffffff811beb31>] unmap_vmas+0x51/0xa0 Jun 27 12:02:44 qual6 kernel: [ 1939.769367] [<ffffffff811c45bc>] unmap_region+0xac/0x120 Jun 27 12:02:44 qual6 kernel: [ 1939.769371] [<ffffffff81223cd0>] ? __dentry_kill+0x160/0x1e0 Jun 27 12:02:44 qual6 kernel: [ 1939.769374] [<ffffffff811c6aca>] do_munmap+0x28a/0x480 Jun 27 12:02:44 qual6 kernel: [ 1939.769378] [<ffffffff8132c9d2>] SyS_shmdt+0xb2/0x170 Jun 27 12:02:44 qual6 kernel: [ 1939.769382] [<ffffffff81825bf2>] entry_SYSCALL_64_fastpath+0x16/0x71 Jun 27 12:02:44 qual6 kernel: [ 1939.769385] BUG: Bad page map in process fio pte:4c57545631433130 pmd:335c5067 Jun 27 12:02:44 qual6 kernel: [ 1939.769389] addr:00007ff321a04000 vm_flags:080000fb anon_vma: (null) mapping:ffff880196cc8e90 index:3ab6 Jun 27 12:02:44 qual6 kernel: [ 1939.769392] file:SYSV00000000 fault:shm_fault mmap:shm_mmap readpage: (null) Jun 27 12:02:44 qual6 kernel: [ 1939.769396] CPU: 0 PID: 3005 Comm: fio Tainted: G B 4.4.0-24-generic #43-Ubuntu Jun 27 12:02:44 qual6 kernel: [ 1939.769398] Hardware name: Dell Computer Corporation PowerEdge 1800/0P8611, BIOS A07 09/29/2006 Jun 27 12:02:44 qual6 kernel: [ 1939.769400] 0000000000000286 0000000063f6c1a4 ffff880196f97c20 ffffffff813eab23 Jun 27 12:02:44 qual6 kernel: [ 1939.769404] 00007ff321a04000 ffff880196eb2578 ffff880196f97c70 ffffffff811bc32f Jun 27 12:02:44 qual6 kernel: [ 1939.769408] 00007ff321a03000 ffff880196f97c88 ffffffff811bc33e 3453583520202020 Jun 27 12:02:44 qual6 kernel: [ 1939.769412] Call Trace: Jun 27 12:02:44 qual6 kernel: [ 1939.769416] [<ffffffff813eab23>] dump_stack+0x63/0x90 Jun 27 12:02:44 qual6 kernel: [ 1939.769420] [<ffffffff811bc32f>] print_bad_pte+0x1df/0x2a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769424] [<ffffffff811bc33e>] ? print_bad_pte+0x1ee/0x2a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769427] [<ffffffff811bd803>] vm_normal_page+0x53/0xa0 Jun 27 12:02:44 qual6 kernel: [ 1939.769431] [<ffffffff811bdccc>] unmap_page_range+0x47c/0x7a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769435] [<ffffffff811be06d>] unmap_single_vma+0x7d/0xe0 Jun 27 12:02:44 qual6 kernel: [ 1939.769438] [<ffffffff811beb31>] unmap_vmas+0x51/0xa0 Jun 27 12:02:44 qual6 kernel: [ 1939.769441] [<ffffffff811c45bc>] unmap_region+0xac/0x120 Jun 27 12:02:44 qual6 kernel: [ 1939.769445] [<ffffffff81223cd0>] ? __dentry_kill+0x160/0x1e0 Jun 27 12:02:44 qual6 kernel: [ 1939.769448] [<ffffffff811c6aca>] do_munmap+0x28a/0x480 Jun 27 12:02:44 qual6 kernel: [ 1939.769452] [<ffffffff8132c9d2>] SyS_shmdt+0xb2/0x170 Jun 27 12:02:44 qual6 kernel: [ 1939.769456] [<ffffffff81825bf2>] entry_SYSCALL_64_fastpath+0x16/0x71 Jun 27 12:02:44 qual6 kernel: [ 1939.769459] swap_free: Bad swap offset entry 1c228000000000 Jun 27 12:02:44 qual6 kernel: [ 1939.769462] BUG: Bad page map in process fio pte:3845000000000000 pmd:335c5067 Jun 27 12:02:44 qual6 kernel: [ 1939.769465] addr:00007ff321a05000 vm_flags:080000fb anon_vma: (null) mapping:ffff880196cc8e90 index:3ab7 Jun 27 12:02:44 qual6 kernel: [ 1939.769469] file:SYSV00000000 fault:shm_fault mmap:shm_mmap readpage: (null) Jun 27 12:02:44 qual6 kernel: [ 1939.769472] CPU: 0 PID: 3005 Comm: fio Tainted: G B 4.4.0-24-generic #43-Ubuntu Jun 27 12:02:44 qual6 kernel: [ 1939.769474] Hardware name: Dell Computer Corporation PowerEdge 1800/0P8611, BIOS A07 09/29/2006 Jun 27 12:02:44 qual6 kernel: [ 1939.769476] 0000000000000286 0000000063f6c1a4 ffff880196f97c38 ffffffff813eab23 Jun 27 12:02:44 qual6 kernel: [ 1939.769481] 00007ff321a05000 ffff880196eb2578 ffff880196f97c88 ffffffff811bc32f Jun 27 12:02:44 qual6 kernel: [ 1939.769485] ffff880196f97c60 ffffffff811d33e0 001c228000000000 3845000000000000 Jun 27 12:02:44 qual6 kernel: [ 1939.769489] Call Trace: Jun 27 12:02:44 qual6 kernel: [ 1939.769493] [<ffffffff813eab23>] dump_stack+0x63/0x90 Jun 27 12:02:44 qual6 kernel: [ 1939.769497] [<ffffffff811bc32f>] print_bad_pte+0x1df/0x2a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769500] [<ffffffff811d33e0>] ? swap_info_get+0xb0/0xd0 Jun 27 12:02:44 qual6 kernel: [ 1939.769504] [<ffffffff811bdcb8>] unmap_page_range+0x468/0x7a0 Jun 27 12:02:44 qual6 kernel: [ 1939.769508] [<ffffffff811be06d>] unmap_single_vma+0x7d/0xe0 Jun 27 12:02:44 qual6 kernel: [ 1939.769512] [<ffffffff811beb31>] unmap_vmas+0x51/0xa0 Jun 27 12:02:44 qual6 kernel: [ 1939.769515] [<ffffffff811c45bc>] unmap_region+0xac/0x120 Jun 27 12:02:44 qual6 kernel: [ 1939.769518] [<ffffffff81223cd0>] ? __dentry_kill+0x160/0x1e0 Jun 27 12:02:44 qual6 kernel: [ 1939.769522] [<ffffffff811c6aca>] do_munmap+0x28a/0x480 Jun 27 12:02:44 qual6 kernel: [ 1939.769525] [<ffffffff8132c9d2>] SyS_shmdt+0xb2/0x170 Jun 27 12:02:44 qual6 kernel: [ 1939.769529] [<ffffffff81825bf2>] entry_SYSCALL_64_fastpath+0x16/0x71 Jun 27 12:02:44 qual6 kernel: [ 1939.769533] BUG: Bad page map in process fio pte:544f303136314554 pmd:335c5067 Jun 27 12:02:44 qual6 kernel: [ 1939.769536] addr:00007ff321a06000 vm_flags:080000fb anon_vma: (null) mapping:ffff880196cc8e90 index:3ab8 Jun 27 12:02:44 qual6 kernel: [ 1939.769540] file:SYSV00000000 fault:shm_fault mmap:shm_mmap readpage: (null) Jun 27 12:02:44 qual6 kernel: [ 1939.769543] CPU: 0 PID: 3005 Comm: fio Tainted: G B 4.4.0-24-generic #43-Ubuntu Jun 27 12:02:44 qual6 kernel: [ 1939.769546] Hardware name: Dell Computer Corporation PowerEdge 1800/0P8611, BIOS A07 09/29/2006 -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html