FIO bug

Flexible I/O Tester development
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* FIO bug
@ 2010-02-05 23:30 H. Tolley
  2010-02-06 22:36 ` Jens Axboe
  0 siblings, 1 reply; 3+ messages in thread
From: H. Tolley @ 2010-02-05 23:30 UTC (permalink / raw)
  To: fio

The function static void get_file_system_type(struct fio_file *f)ï¿½ï¿½ (in file filesetup.c)
has a call to lstat(..) which if given a symbolic link will give information about the link 
instead of information about the target of the link.ï¿½ In Solaris it is very common that the 
disk device nodes in /dev/dsk/ are symbolic links to files in /devices/... and so the call 
to lstat(..) will not properly identify a file as a block device instead of a normal file.ï¿½ 

A call to stat(..) on a filename that represents a block device will not return the proper 
size on Solaris.ï¿½ Combined with the above-mentioned mis-identification of a link to a 
block device as a normal file, the function file_size(..) is invoked rather than a call
to bdev_size(..) and fio will not run properly.

Fix: Can the call to lstat(..) in get_file_system_type(..) be replaced by a call to stat(..)?

This happens on Open Solaris v10 x86_64.

Hal Tolley

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: FIO bug
  2010-02-05 23:30 FIO bug H. Tolley
@ 2010-02-06 22:36 ` Jens Axboe
  0 siblings, 0 replies; 3+ messages in thread
From: Jens Axboe @ 2010-02-06 22:36 UTC (permalink / raw)
  To: H. Tolley; +Cc: fio

On Fri, Feb 05 2010, H. Tolley wrote:
> 
> The function static void get_file_system_type(struct fio_file *f)ï¿½ï¿½
> (in file filesetup.c) has a call to lstat(..) which if given a
> symbolic link will give information about the link instead of
> information about the target of the link.ï¿½ In Solaris it is very
> common that the disk device nodes in /dev/dsk/ are symbolic links to
> files in /devices/... and so the call to lstat(..) will not properly
> identify a file as a block device instead of a normal file.ï¿½ 
> 
> A call to stat(..) on a filename that represents a block device will
> not return the proper size on Solaris.ï¿½ Combined with the
> above-mentioned mis-identification of a link to a block device as a
> normal file, the function file_size(..) is invoked rather than a call
> to bdev_size(..) and fio will not run properly.
> 
> Fix: Can the call to lstat(..) in get_file_system_type(..) be replaced
> by a call to stat(..)?
> 
> This happens on Open Solaris v10 x86_64.

That does look like a bug, that stat should return info about the real
device and not a potential link. I have committed a fix for that now.

-- 
Jens Axboe


^ permalink raw reply	[flat|nested] 3+ messages in thread

[parent not found: <CAP8ELLWHUR5_Zia8X03eOotDUW8M-5u3pA_ie=sXD8cvwh1e5g@mail.gmail.com>]

* Fwd: fio bug
       [not found] <CAP8ELLWHUR5_Zia8X03eOotDUW8M-5u3pA_ie=sXD8cvwh1e5g@mail.gmail.com>
@ 2016-06-27 21:20 ` Frank Londono
  2016-06-28  5:26   ` Sitsofe Wheeler
  0 siblings, 1 reply; 3+ messages in thread
From: Frank Londono @ 2016-06-27 21:20 UTC (permalink / raw)
  To: fio

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

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: fio bug
  2016-06-27 21:20 ` Fwd: fio bug Frank Londono
@ 2016-06-28  5:26   ` Sitsofe Wheeler
  0 siblings, 0 replies; 3+ messages in thread
From: Sitsofe Wheeler @ 2016-06-28  5:26 UTC (permalink / raw)
  To: Frank Londono; +Cc: fio@vger.kernel.org

On 27 June 2016 at 22:20, Frank Londono <flonclondono@gmail.com> wrote:
> Just started using tkperf/fio, and am the system crashes:
>
> 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

Assuming your hardware isn't buggy you've tickled a bug in the kernel
rather than a bug in fio so this isn't the right list of your issue.
Since you're running an Ubuntu kernel you need to report it to Ubuntu
(e.g. via https://bugs.launchpad.net/ubuntu/+source/linux/+filebug )
unless you can also reproduce it on the latest mainline kernel from
kernel.org (4.7-rc5 at the time of writing) in which case you would
better off reporting on the Linux Kernel Mailing List / the kernel.org
Bugzilla.

-- 
Sitsofe | http://sucs.org/~sits/

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2016-06-28  5:26 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-02-05 23:30 FIO bug H. Tolley
2010-02-06 22:36 ` Jens Axboe
     [not found] <CAP8ELLWHUR5_Zia8X03eOotDUW8M-5u3pA_ie=sXD8cvwh1e5g@mail.gmail.com>
2016-06-27 21:20 ` Fwd: fio bug Frank Londono
2016-06-28  5:26   ` Sitsofe Wheeler

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