search for: virtio_pstore_type_nnn

...right > > logic when your corresponding do_write method can pick several > > different filenames, its potluck which do_read will give back. > > Do you mean that it'd be better to check a list of known filenames and > fail if not? No, I mean that you have several different VIRTIO_PSTORE_TYPE_nnn and use a different file for each constant. When reading this directory though you're not looking for the file corresponding to any given VIRTIO_PSTORE_TYPE_nnn - you're simply reading whichever file is found first. So you might have just read a TYPE_CONSOLE or have read a TYPE_DMESG - it s...

...right > > logic when your corresponding do_write method can pick several > > different filenames, its potluck which do_read will give back. > > Do you mean that it'd be better to check a list of known filenames and > fail if not? No, I mean that you have several different VIRTIO_PSTORE_TYPE_nnn and use a different file for each constant. When reading this directory though you're not looking for the file corresponding to any given VIRTIO_PSTORE_TYPE_nnn - you're simply reading whichever file is found first. So you might have just read a TYPE_CONSOLE or have read a TYPE_DMESG - it s...

On Thu, Jul 28, 2016 at 12:08:30AM +0900, Namhyung Kim wrote: > Add virtio pstore device to allow kernel log files saved on the host. > It will save the log files on the directory given by pstore device > option. > > $ qemu-system-x86_64 -device virtio-pstore,directory=dir-xx ... > > (guest) # echo c > /proc/sysrq-trigger > > $ ls dir-xx > dmesg-1.enc.z

On Thu, Jul 28, 2016 at 12:08:30AM +0900, Namhyung Kim wrote: > Add virtio pstore device to allow kernel log files saved on the host. > It will save the log files on the directory given by pstore device > option. > > $ qemu-system-x86_64 -device virtio-pstore,directory=dir-xx ... > > (guest) # echo c > /proc/sysrq-trigger > > $ ls dir-xx > dmesg-1.enc.z