Hi,
On 01-03-16 10:42, Yves-Alexis Perez wrote:
Hi,
[sorry if this is not the right point for reporting bugs, I took the email
addresses from MAINTAINERS but please point me to the correct place if needed]
I have an external USB drive (Samsung M3), which apparently uses the UAS code.
Starting with 4.4 (from Debian sid, I could retry with vanilla if needed), I
can't mount the drive anymore after a while (few hours/days uptime). Just
plugging the disk, I get page allocation failure in kernel logs:
Can you try building a kernel with the following line in drivers/usb/storage/uas.c :
.can_queue = 65536, /* Is there a limit on the _host_ ? */
(around line 815) Replaced with
.can_queue = MAX_CMNDS,
That should help as MAX_CMNDS is 256, so claiming that we can queue more
is not helpful, and that likely is what is causing this quite high order alloc.
Regards,
Hans
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