linux-bluetooth.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [Bug 215347] New: btintel: AX200 (8087:0029): hci crashed and can't recover after repeated rfkill on/off
@ 2021-12-17 11:42 bugzilla-daemon
  2021-12-17 11:43 ` [Bug 215347] btintel: AX200 (8087:0029): hci crashes " bugzilla-daemon
                   ` (14 more replies)
  0 siblings, 15 replies; 16+ messages in thread
From: bugzilla-daemon @ 2021-12-17 11:42 UTC (permalink / raw)
  To: linux-bluetooth

https://bugzilla.kernel.org/show_bug.cgi?id=215347

            Bug ID: 215347
           Summary: btintel: AX200 (8087:0029): hci crashed and can't
                    recover after repeated rfkill on/off
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.16-rc5
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@vger.kernel.org
          Reporter: hui.wang@canonical.com
        Regression: No

Created attachment 300051
  --> https://bugzilla.kernel.org/attachment.cgi?id=300051&action=edit
testing script

We have a couple of Lenovo machines which have Bluetooth hci (8087:0029), If we
run a script like below:
for a in {1..100}
do
    echo $a
    rfkill block $HCI0_ID
    sleep 1
    rfkill unblock $HCI0_ID
    sleep 1
done

The kernel will print "hci0: Failed to read MSFT supported features (-110)"
after several round of rfkill block/unblock, and the bluetooth driver can't
work anymore from that moment. Sometimes 'rmmod btusb;modprobe btusb" could
make the bluetooth driver work again, sometimes need to reboot.

We already updated the kernel and linux-firmware to the latest, but still could
reproduce above issue.

And we run the same test on other machines with different Bluetooth hci like
8087:0026, they all work well with the testing script.

The 8087:0029 hci loads the intel/ibt-20-1-3.sfi, we suspect this is an issue
on the bluetooth firmware ibt-20-1-3.sfi, since 8087:0026 shares the same
kernel driver with 0029, but only 0029 has this issue.


And the testing script is attached.

-- 
You may reply to this email to add a comment.

You are receiving this mail because:
You are the assignee for the bug.

^ permalink raw reply	[flat|nested] 16+ messages in thread
end of thread, other threads:[~2022-01-20  1:22 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-12-17 11:42 [Bug 215347] New: btintel: AX200 (8087:0029): hci crashed and can't recover after repeated rfkill on/off bugzilla-daemon
2021-12-17 11:43 ` [Bug 215347] btintel: AX200 (8087:0029): hci crashes " bugzilla-daemon
2021-12-18  0:02 ` bugzilla-daemon
2021-12-18  6:12 ` bugzilla-daemon
2021-12-18  6:13 ` bugzilla-daemon
2021-12-18  6:14 ` bugzilla-daemon
2021-12-18  6:15 ` bugzilla-daemon
2021-12-18  6:36 ` bugzilla-daemon
2021-12-18  6:46 ` bugzilla-daemon
2021-12-22 22:56 ` bugzilla-daemon
2021-12-22 23:45 ` bugzilla-daemon
2021-12-23  5:28 ` bugzilla-daemon
2021-12-23 13:42 ` bugzilla-daemon
2021-12-25  1:32 ` bugzilla-daemon
2022-01-20  1:22 ` bugzilla-daemon
2022-01-20  1:22 ` bugzilla-daemon

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).