I will fix and resend tomorrow.
Huge thanks, Sergey!
On Tue, Apr 10, 2018 at 09:41:09AM +0900, Sergey Senozhatsky wrote:
> I think zram_debugfs_unregister() is called both from zram_remove() and
> from destroy_devices(), which explodes:
>
> [ 1906.467981] BUG: unable to handle kernel NULL pointer
On Tue, Apr 10, 2018 at 09:03:05AM +0900, Sergey Senozhatsky wrote:
> Hi Minchan,
>
> On (04/09/18 14:54), Minchan Kim wrote:
> > +static long long ns2usecs(u64 nsec)
> > +{
> > + nsec += 500;
> > + do_div(nsec, 1000);
> > + return nsec;
> > +}
>
> Sorry, I don't quite understand "nsec += 5
I think zram_debugfs_unregister() is called both from zram_remove() and
from destroy_devices(), which explodes:
[ 1906.467981] BUG: unable to handle kernel NULL pointer dereference at
00b8
[ 1906.468007] PGD 8003d5050067 P4D 8003d5050067 PUD 3fa97d067 PMD 0
[ 1906.468029] Oops
Hi Minchan,
On (04/09/18 14:54), Minchan Kim wrote:
> +static long long ns2usecs(u64 nsec)
> +{
> + nsec += 500;
> + do_div(nsec, 1000);
> + return nsec;
> +}
Sorry, I don't quite understand "nsec += 500".
> +static ssize_t read_block_state(struct file *file, char __user *buf,
> +
On Mon, 9 Apr 2018 10:03:45 +0200
Greg KH wrote:
> On Mon, Apr 09, 2018 at 02:54:35PM +0900, Minchan Kim wrote:
> > zRam as swap is useful for small memory device. However, swap means
> > those pages on zram are mostly cold pages due to VM's LRU algorithm.
> > Especially, once init data for appli
On Mon, Apr 09, 2018 at 02:54:35PM +0900, Minchan Kim wrote:
> zRam as swap is useful for small memory device. However, swap means
> those pages on zram are mostly cold pages due to VM's LRU algorithm.
> Especially, once init data for application are touched for launching,
> they tend to be not acc
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