Thanks a lot James, I have verified your suggested with my driver, its working very well.
Thanks again for great and quick help. Best regards, ajit On Wed, Jan 7, 2009 at 1:08 PM, James C. McPherson <[email protected]>wrote: > On Wed, 07 Jan 2009 11:15:23 +0530 > ajit jain <[email protected]> wrote: > > > Hi, > > > > Thanks for replying Paul. > > > > My driver will be loaded at the boot time itself, just after the root > > file-system mounts in the read-only mode. Suppose there is bug in the > > driver due to which the system is panicing, and since the driver is > > loading at the boot time, it will cause the system to panic in all > > the subsequent boot cycle. To avoid such issue I'll bypass the driver > > loading by supplying "do not load the driver" as an argument to the > > boot options. So, in the rc scripts I need to check whether the > > system is boot with the by-pass mode of the driver. > > > Gday Ajit, > > If you add > > -Bdisable-sd=true > > to your kernel$ line in grub, then the sd(7d) driver will be > disabled. Replace "sd" with your driver name to achieve a similar > result. > > That's the best way that I know of to prevent loading a driver > which is panicing on boot. > > > James C. McPherson > -- > Senior Kernel Software Engineer, Solaris > Sun Microsystems > http://blogs.sun.com/jmcp http://www.jmcp.homeunix.com/blog >
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