Comment 44 for bug 17881

Sihabul, thank you for your report. It helps in providing a reproducible test-case.

Can you let us have the make/model of the PC (including BIOS version), and the make/model of the flash-memory device?

Are you connecting the USb flash-memory device directly to a USB port on the PC, or into an external hub or card-reader. If either of the latter please also include the make/model of those so we can understand your configuration.

Also, please include the following additional information (pay attention to lspci's additional options), as required by the Ubuntu Kernel Team:

1. Please include the output of the command "uname -a" in your next response. It should be one, long line of text which includes the exact kernel version you're running, as well as the CPU architecture.
2. Please run the command "dmesg > dmesg.log" after a fresh boot and attach the resulting file "dmesg.log" to this bug report.
3. Please run the command "sudo lspci -vvnn > lspci-vvnn.log" and attach the resulting file "lspci-vvnn.log" to this bug report.

For your reference, the full description of procedures for kernel-related bug reports is available at http://wiki.ubuntu.com/KernelTeamBugPolicies. Thanks in advance!

In addition, can you restart the PC, run the test you mentioned:

Boot without the flash memory pluged
Plug the flash
write trials: hangs at 4th trial.

and attach the /var/log/kern.log file to this bug report/