On Tue, Oct 20, 2015 at 10:19:09AM -0700, Kees Cook wrote: > On Tue, Oct 20, 2015 at 12:39 AM, Geliang Tang <geliangt...@163.com> wrote: > > On Mon, Oct 19, 2015 at 10:56:54PM +0000, Luck, Tony wrote: > >> Thanks for looking to close out this TODO item. > >> > >> The thing that scared me about unloading pstore was what happens to > >> a process that is in the middle of reading some > >> /sys/fs/pstore/file-name-here > > Were you able to verify that this reading-while-rmmod case works correctly? > > -Kees
$ sudo insmod zlib_deflate.ko $ sudo insmod pstore.ko $ lsmod Module Size Used by pstore 11225 0 zlib_deflate 18292 1 pstore $ sudo mount -t pstore pstore /sys/fs/pstore $ lsmod Module Size Used by pstore 11225 1 zlib_deflate 18292 1 pstore $ sudo insmod reed_solomon.ko $ sudo insmod ramoops.ko mem_address=0x40000000 mem_size=0x400000 $ lsmod Module Size Used by ramoops 9638 0 reed_solomon 5150 1 ramoops pstore 11225 2 ramoops zlib_deflate 18292 1 pstore $ tail -f /sys/fs/pstore/console-ramoops-0 & [1] 3483 $ lsmod Module Size Used by ramoops 9638 0 reed_solomon 5150 1 ramoops pstore 11225 3 ramoops zlib_deflate 18292 1 pstore $ kill -9 3483 $ lsmod Module Size Used by ramoops 9638 0 reed_solomon 5150 1 ramoops pstore 11225 2 ramoops zlib_deflate 18292 1 pstore $ sudo rmmod ramoops $ lsmod Module Size Used by reed_solomon 5150 0 pstore 11225 1 zlib_deflate 18292 1 pstore $ sudo umount /sys/fs/pstore/ $ lsmod Module Size Used by reed_solomon 5150 0 pstore 11225 0 zlib_deflate 18292 1 pstore $ sudo rmmod pstore $ lsmod Module Size Used by reed_solomon 5150 0 zlib_deflate 18292 0 Thanks. Geliang Tang -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
