On 11/9/06, Rafael J. Wysocki <[EMAIL PROTECTED]> wrote: > I think that the swap header need not be continuous. This actually also > follows from the sys_swapon() code which reads one page from the file > using its mapping. It looks like setup_swap_extents() omits the first > continuous PAGE_SIZE "block" just in case it contains the header, but > the swap-handling will work even if it doesn't. > > However, in case this happens, swsusp and s2disk/s2both won't be > able to use the swap file for the suspend, because swap_type_of() will > fail. > > Now if that really is what happens (could you please verify with your setup?),
It seems so. What I see is the following: 0x0000-0x1000: header, not contiguous 0x1000-0x2000: nothing, this page is left empty 0x2000-EOF: swap data > it would be nice if your program detected such situations and informed the > user that the swap file could not be used. Basically: - find the first block of the swapfile - check that there's a contiguous PAGE_SIZE cluster - check signature Luca ------------------------------------------------------------------------- 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 _______________________________________________ Suspend-devel mailing list Suspend-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/suspend-devel
