Hello Alan > The drive's firmware fails to respond to MODE SENSE commands. > The same thing should happen on the PC. It would be > possible to prevent those commands from being sent by adding > an entry to the blacklist table, if you want.
How to add MODE_SENSE in the blacklist table ? Are you referring to UNUSUAL_DEV as blacklist table ? Is there a reference code that I can use to add MODE_SENSE to blacklist table ? Thanks. Regards Vivek > -----Original Message----- > From: Alan Stern [mailto:[EMAIL PROTECTED] > Sent: Tuesday, September 12, 2006 7:40 AM > To: Vivek Dharmadhikari > Cc: [email protected]; Edward Qian > Subject: RE: [linux-usb-devel] 3SYSTEM's POCKET USB DISK does not work > > On Mon, 11 Sep 2006, Vivek Dharmadhikari wrote: > > > Hello Alan > > > > > Is the failure to ACK the problem you're worried about? > > > > Yes and the other issue(I/O error) as well. The real > problem is that > > when we use this USB stick with out host controller, the > driver takes > > long time to report "Attached scsi removable disk sda at scsi0, > > channel 0, id 0, lun 0" line. Similarly the driver takes long time > > when we try to mount the file system and contents of > mounted directory > > can not be accessed. > > > > > To find out what's happening, you should compare a kernel > log from > > > the device and a log from a PC running the same version > of the Linux > > > kernel, that is, vanilla 2.6.12 and not Fedora's 2.6.11. > > > > I don't have a PC running 2.6.12. However I will try. > > > > > Also, it would help to increase the size of your kernel's log > > > buffer. > > > > I am reposting the kernel log below. The log is long > because I did not > > edit it. Please let me know if more info is required. > > The drive's firmware fails to respond to MODE SENSE commands. > The same thing should happen on the PC. It would be > possible to prevent those commands from being sent by adding > an entry to the blacklist table, if you want. > > The drive also has a problem with a READ command and fails to > recover from it properly. You should try using 2.6.13 or > later (the later the better) because in those kernels the > error recovery in usb-storage is much improved. > > Alan Stern > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
