kernel-packages team mailing list archive

[Tsu Jan <500069@xxxxxxxxxxxxxxxxxx>]

@Daniel Barrett

I have Debian with Liquorix kernel 3.10.X and this always works for me
before inserting usb stick:

sudo bash -c 'echo "never" >
/sys/kernel/mm/transparent_hugepage/enabled'

I just came to this page and was surprised that there was no trace of
"THP" or "hugepages", so I added a comment.

See https://www.kernel.org/doc/Documentation/vm/transhuge.txt for
explanation.

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https://bugs.launchpad.net/bugs/500069

Title:
  USB file transfer causes system freezes; ops take hours instead of
  minutes

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Triaged
Status in “linux” package in Fedora:
  Unknown

Bug description:
  USB Drive is a MP3 Player 2GB

  sbec@Diamant:~$ lsusb
  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 003 Device 002: ID 046d:c50e Logitech, Inc. MX-1000 Cordless Mouse Receiver
  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 001 Device 004: ID 0402:5661 ALi Corp.
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  sbec@Diamant:~$

  Linux Diamant 2.6.31-15-generic #50-Ubuntu SMP Tue Nov 10 14:54:29 UTC 2009 i686 GNU/Linux
  Ubuntu 2.6.31-15.50-generic

  to test, i issued dd command:
  dd if=/dev/zero of=/media/usb-disk/test-file bs=32

  while dd is running i run dstat.... this is in the log file attached.

  other logs are also in the tar.gz file...

  there is a huge USB performance Bug report #1972262. this Report is
  something simular

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