kern/176104: [iwn] iwn0: iwn_intr: fatal firmware error

[Anton Shterenlikht]

The following reply was made to PR kern/176104; it has been noted by GNATS.

From: Anton Shterenlikht <mexas at bris.ac.uk>
To: bug-followup at freebsd.org
Cc:  
Subject: RE: kern/176104: [iwn] iwn0: iwn_intr: fatal firmware error
Date: Mon, 24 Jun 2013 09:07:42 +0100 (BST)

 This problem still persists in r252033:
 
 iwn0: iwn_intr: fatal firmware error
 firmware error log:
   error type      = "NMI_INTERRUPT_WDG" (0x00000004)
   program counter = 0x0000046C
   source line     = 0x000000D0
   error data      = 0x0000000207030000
   branch link     = 0x00008370000004C2
   interrupt link  = 0x000006DA000018B8
   time            = 200035
 driver status:
   tx ring  0: qid=0  cur=0   queued=0  
   tx ring  1: qid=1  cur=0   queued=0  
   tx ring  2: qid=2  cur=0   queued=0  
   tx ring  3: qid=3  cur=2   queued=1  
   tx ring  4: qid=4  cur=67  queued=0  
   tx ring  5: qid=5  cur=0   queued=0  
   tx ring  6: qid=6  cur=0   queued=0  
   tx ring  7: qid=7  cur=0   queued=0  
   tx ring  8: qid=8  cur=0   queued=0  
   tx ring  9: qid=9  cur=0   queued=0  
   tx ring 10: qid=10 cur=0   queued=0  
   tx ring 11: qid=11 cur=0   queued=0  
   tx ring 12: qid=12 cur=0   queued=0  
   tx ring 13: qid=13 cur=0   queued=0  
   tx ring 14: qid=14 cur=0   queued=0  
   tx ring 15: qid=15 cur=0   queued=0  
   rx ring: cur=5
 NVRM: GPU at 0000:01:00: GPU-a1a1491c-c546-eda9-3b1f-54ec998e9441
 ifa_del_loopback_route: deletion failed: 48
 wlan0: Ethernet address: 00:21:5c:50:68:c3
 wlan0: link state changed to UP
 wlan0: link state changed to DOWN
 iwn0: device timeout
 
 
 iwn0: iwn_intr: fatal firmware error
 firmware error log:
   error type      = "NMI_INTERRUPT_WDG" (0x00000004)
   program counter = 0x0000046C
   source line     = 0x000000D0
   error data      = 0x0000000207030000
   branch link     = 0x00008370000004C2
   interrupt link  = 0x000006DA000018B8
   time            = 200035
 driver status:
   tx ring  0: qid=0  cur=0   queued=0  
   tx ring  1: qid=1  cur=0   queued=0  
   tx ring  2: qid=2  cur=0   queued=0  
   tx ring  3: qid=3  cur=2   queued=1  
   tx ring  4: qid=4  cur=67  queued=0  
   tx ring  5: qid=5  cur=0   queued=0  
   tx ring  6: qid=6  cur=0   queued=0  
   tx ring  7: qid=7  cur=0   queued=0  
   tx ring  8: qid=8  cur=0   queued=0  
   tx ring  9: qid=9  cur=0   queued=0  
   tx ring 10: qid=10 cur=0   queued=0  
   tx ring 11: qid=11 cur=0   queued=0  
   tx ring 12: qid=12 cur=0   queued=0  
   tx ring 13: qid=13 cur=0   queued=0  
   tx ring 14: qid=14 cur=0   queued=0  
   tx ring 15: qid=15 cur=0   queued=0  
   rx ring: cur=22
 ifa_del_loopback_route: deletion failed: 48
 wlan0: Ethernet address: 00:21:5c:50:68:c3
 
 
 iwn0: iwn_intr: fatal firmware error
 firmware error log:
   error type      = "NMI_INTERRUPT_WDG" (0x00000004)
   program counter = 0x0000046C
   source line     = 0x000000D0
   error data      = 0x0000000202030000
   branch link     = 0x00005CEE000004C2
   interrupt link  = 0x000006DE00007386
   time            = 220366
 driver status:
   tx ring  0: qid=0  cur=0   queued=0  
   tx ring  1: qid=1  cur=0   queued=0  
   tx ring  2: qid=2  cur=0   queued=0  
   tx ring  3: qid=3  cur=4   queued=0  
   tx ring  4: qid=4  cur=97  queued=0  
   tx ring  5: qid=5  cur=0   queued=0  
   tx ring  6: qid=6  cur=0   queued=0  
   tx ring  7: qid=7  cur=0   queued=0  
   tx ring  8: qid=8  cur=0   queued=0  
   tx ring  9: qid=9  cur=0   queued=0  
   tx ring 10: qid=10 cur=0   queued=0  
   tx ring 11: qid=11 cur=0   queued=0  
   tx ring 12: qid=12 cur=0   queued=0  
   tx ring 13: qid=13 cur=0   queued=0  
   tx ring 14: qid=14 cur=0   queued=0  
   tx ring 15: qid=15 cur=0   queued=0  
   rx ring: cur=42
 ifa_del_loopback_route: deletion failed: 48
 wlan0: Ethernet address: 00:21:5c:50:68:c3
 
 etc.