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SubjectRe: "BUG: unable to handle kernel paging request" on shutdown or killing NetworkManager in latest wireless-testing (with rt73usb wireless adapter)
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Hi,

> I have just compiled a kernel from wireless-testing (32-bit x86), and
> I get this during shutdown or if I kill NetworkManager (blacklisting
> rt73usb fixes it):

Could you try below patch to see if that works?

Ivo

---
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 58d1633..63381cf 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -347,8 +347,11 @@ void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev)
}

/*
- * Kill guardian urb.
+ * Kill guardian urb (if required by driver).
*/
+ if (!test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags))
+ return;
+
for (i = 0; i < rt2x00dev->bcn->limit; i++) {
bcn_priv = rt2x00dev->bcn->entries[i].priv_data;
if (bcn_priv->guardian_urb)

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