[Bug 198043] Bluetooth mgmt api set powered causes kernel race condition

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



https://bugzilla.kernel.org/show_bug.cgi?id=198043

luc (l.perneel@xxxxxxxxxxx) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |l.perneel@xxxxxxxxxxx

--- Comment #1 from luc (l.perneel@xxxxxxxxxxx) ---
Had a similar issue on a 4.9.60 build where the hci_sock_release and
hci_send_to_channel on two CPUs generate a soft lockup between them.
The hci_sock_release with the _raw_write_lock (like here) and the 
hci_sock_release with the _raw_read_lock (different than this case, but highly
probable caused by the same issue).
So it seems that the _raw_write_lock and the _raw_read_lock have a deadly race
between them.


Will dig deeper into the issue and post an update later.

-- 
You are receiving this mail because:
You are the assignee for the bug.--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Bluez Devel]     [Linux Wireless Networking]     [Linux Wireless Personal Area Networking]     [Linux ATH6KL]     [Linux USB Devel]     [Linux Media Drivers]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Big List of Linux Books]

  Powered by Linux