[Bug 1781578] Re: Call trace observed while disabling PD on Ubuntu 16.04.4

2018-08-24 Thread Murthy Bhat
Hi,

Can someone help to resolve this issue? The issue is not seen on GA
release.

Regards/Murthy Bhat

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Title:
  Call trace observed while disabling PD on Ubuntu 16.04.4

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[Bug 1781578] Re: Call trace observed while disabling PD on Ubuntu 16.04.4

2018-08-16 Thread Murthy Bhat
FYI,

This issue is reported on Ubuntu  16.04.4 TLS kernel - Hardware
Enablement (HWE) on cavium server by our test team

Regards/Murthy Bhat

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

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Title:
  Call trace observed while disabling PD on Ubuntu 16.04.4

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[Bug 1781578] Re: Call trace observed while disabling PD on Ubuntu 16.04.4

2018-08-10 Thread Murthy Bhat
Hi,
As you suggested, we have upgraded the kernel as per 
https://wiki.ubuntu.com/Kernel/MainlineBuilds?action=show=KernelMainlineBuilds
 and 
OS boots to the updated kernel properly on our cavium server
Due to some issues with aarch64 kernel packages, the ‘build’ directory is 
missing under /lib/modules// after the update hence unable to build our 
smartpqi driver to retest this.

Please suggest how to upgrade to latest upstream kernel on aarch64 so
that we can build our smartpqi storage driver.

We have downloaded the following packages from http://kernel.ubuntu.com
/~kernel-ppa/mainline/v4.18-rc5 and installed.

linux-headers-4.18.0-041800rc5_4.18.0-041800rc5.201807152130_all.deb
linux-headers-4.18.0-041800rc5-generic_4.18.0-041800rc5.201807152130_arm64.deb
linux-image-4.18.0-041800rc5-generic_4.18.0-041800rc5.201807152130_arm64.deb
linux-modules-4.18.0-041800rc5-generic_4.18.0-041800rc5.201807152130_arm64.deb

Regards/Ram

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Title:
  Call trace observed while disabling PD on Ubuntu 16.04.4

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[Bug 1781578] Re: Call trace observed while disabling PD on Ubuntu 16.04.4

2018-07-13 Thread Murthy Bhat
Due to nature of the defect, could not run the apport-collect command

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

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Title:
  Call trace observed while disabling PD on Ubuntu 16.04.4

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[Bug 1781578] [NEW] Call trace observed while disabling PD on Ubuntu 16.04.4

2018-07-13 Thread Murthy Bhat
Public bug reported:

I am working on smartpqi linux driver for Microsemi.

We have a storage controller managment application tool to manage storage 
behind our controller. One of the application option what we have is to disable 
physical device(PD).
During disable PD opertaion, Disable PD command got timedout. Then I observed 
below mentioned call trace in dmesg log.
Please note we are running IO stress test on the PD which is being disabled.

Please let me know if there are any known issues specific to Ubuntu kernel with 
respect to this. 
If its a known issue specific to Ubuntu 16.04.4 distro, does this issue already 
addressed in latest Ubuntu OS distro ?

Thanks in advance!

Sincerely,
Murthy Bhat

Call trace:
smartpqi :92:00.0: removed 5:0:2:0 3d1701cf2001 Direct-Access ATA 
ST1000NX0303 AIO+ qd=32
[ 1199.201495] Buffer I/O error on dev sdk, logical block 244190645, async page 
read
[ 1343.006515] sdn:
[ 1358.264503] INFO: task kworker/173:1:1620 blocked for more than 120 seconds.
[ 1358.271550] Tainted: G OE 4.13.0-36-generic #40~16.04.1-Ubuntu
[ 1358.278966] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this 
message.
[ 1358.286806] kworker/173:1 D 0 1620 2 0x
[ 1358.286832] Workqueue: events pqi_rescan_worker [smartpqi]
[ 1358.286836] Call trace:
[ 1358.286844] [] __switch_to+0x90/0xa8
[ 1358.286855] [] __schedule+0x35c/0x8b0
[ 1358.286858] [] schedule+0x34/0x90
[ 1358.286865] [] blk_mq_freeze_queue_wait+0x70/0xd8
[ 1358.286869] [] blk_mq_freeze_queue+0x28/0x38
[ 1358.286873] [] blk_freeze_queue+0x20/0x30
[ 1358.286878] [] blk_cleanup_queue+0x78/0x128
[ 1358.286883] [] __scsi_remove_device+0x64/0x128
[ 1358.286884] [] scsi_remove_device+0x30/0x48
[ 1358.286887] [] scsi_remove_target+0x188/0x1c8
[ 1358.286899] [] sas_rphy_remove+0x78/0x98 
[scsi_transport_sas]
[ 1358.286907] [] sas_port_delete+0x38/0x160 
[scsi_transport_sas]
[ 1358.286918] [] pqi_free_sas_port+0x4c/0x88 [smartpqi]
[ 1358.286926] [] pqi_remove_sas_device+0x24/0x38 [smartpqi]
[ 1358.286933] [] pqi_update_device_list+0x520/0x818 
[smartpqi]
[ 1358.286939] [] pqi_scan_scsi_devices+0x420/0x980 [smartpqi]
[ 1358.286946] [] pqi_rescan_worker+0x24/0x30 [smartpqi]
[ 1358.286955] [] process_one_work+0x14c/0x420
[ 1358.286957] [] worker_thread+0x12c/0x470
[ 1358.286961] [] kthread+0x108/0x138
[ 1358.286963] [] ret_from_fork+0x10/0x30
[ 1358.287045] INFO: task pain:6788 blocked for more than 120 seconds.
[ 1358.293326] Tainted: G OE 4.13.0-36-generic #40~16.04.1-Ubuntu
[ 1358.300730] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this 
message.
[ 1358.308567] pain D 0 6788 6633 0x

** Affects: linux (Ubuntu)
 Importance: Undecided
 Status: New

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Title:
  Call trace observed while disabling PD on Ubuntu 16.04.4

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