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[XtoF Pernod <xtof.pernod@xxxxxxx>]

Public bug reported:

Ubuntu 12.04.3, kernel 3.2.0-53 64b SMP
Every few minutes, the WiFi hangs and the kernel says:

[28795.430080] iwl4965 0000:0c:00.0: Microcode SW error detected.  Restarting 0x82000000.
[28795.430202] iwl4965 0000:0c:00.0: Loaded firmware version: 228.61.2.24
[28795.430339] iwl4965 0000:0c:00.0: Start IWL Error Log Dump:
[28795.430413] iwl4965 0000:0c:00.0: Status: 0x000213E4, count: 5
[28795.430690] iwl4965 0000:0c:00.0: Desc                                  Time       data1      data2      line
[28795.430820] iwl4965 0000:0c:00.0: SYSASSERT                    (0x0005) 0000002189 0x00000001 0x00000000 1384
[28795.430943] iwl4965 0000:0c:00.0: pc      blink1  blink2  ilink1  ilink2  hcmd
[28795.431040] iwl4965 0000:0c:00.0: 0x021AC 0x0217A 0x021C2 0x006DA 0x00000 0x423004E
[28795.431140] iwl4965 0000:0c:00.0: FH register values:
[28795.431244] iwl4965 0000:0c:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0b648500
[28795.431375] iwl4965 0000:0c:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X00b83550
[28795.431513] iwl4965 0000:0c:00.0:                  FH_RSCSR_CHNL0_WPTR: 0X00000038
[28795.431641] iwl4965 0000:0c:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819000
[28795.431777] iwl4965 0000:0c:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 0X0000003c
[28795.431910] iwl4965 0000:0c:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[28795.432084] iwl4965 0000:0c:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[28795.432227] iwl4965 0000:0c:00.0:                FH_TSSR_TX_STATUS_REG: 0X07ff0002
[28795.432367] iwl4965 0000:0c:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
[28795.440091] iwl4965 0000:0c:00.0: Error sending TX power (-5)
[306265.406488] iwl4965 0000:0c:00.0: Microcode SW error detected.  Restarting 0x82000000.
[306265.406502] iwl4965 0000:0c:00.0: Loaded firmware version: 228.61.2.24
[306265.406544] iwl4965 0000:0c:00.0: Start IWL Error Log Dump:
[306265.406553] iwl4965 0000:0c:00.0: Status: 0x000213E4, count: 5
[306265.407876] ieee80211 phy0: Hardware restart was requested

I changed the card, problem still here;
I tried an old(er) kernel I had in stock: 3.2.0-32-generic: the problem *totally* disappeared !

Conclusion: always have an old kernel at hand..

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1225455

Title:
  WiFi with iwl4965 resetting every few minutes..

Status in “linux” package in Ubuntu:
  New

Bug description:
  Ubuntu 12.04.3, kernel 3.2.0-53 64b SMP
  Every few minutes, the WiFi hangs and the kernel says:

  [28795.430080] iwl4965 0000:0c:00.0: Microcode SW error detected.  Restarting 0x82000000.
  [28795.430202] iwl4965 0000:0c:00.0: Loaded firmware version: 228.61.2.24
  [28795.430339] iwl4965 0000:0c:00.0: Start IWL Error Log Dump:
  [28795.430413] iwl4965 0000:0c:00.0: Status: 0x000213E4, count: 5
  [28795.430690] iwl4965 0000:0c:00.0: Desc                                  Time       data1      data2      line
  [28795.430820] iwl4965 0000:0c:00.0: SYSASSERT                    (0x0005) 0000002189 0x00000001 0x00000000 1384
  [28795.430943] iwl4965 0000:0c:00.0: pc      blink1  blink2  ilink1  ilink2  hcmd
  [28795.431040] iwl4965 0000:0c:00.0: 0x021AC 0x0217A 0x021C2 0x006DA 0x00000 0x423004E
  [28795.431140] iwl4965 0000:0c:00.0: FH register values:
  [28795.431244] iwl4965 0000:0c:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X0b648500
  [28795.431375] iwl4965 0000:0c:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X00b83550
  [28795.431513] iwl4965 0000:0c:00.0:                  FH_RSCSR_CHNL0_WPTR: 0X00000038
  [28795.431641] iwl4965 0000:0c:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819000
  [28795.431777] iwl4965 0000:0c:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 0X0000003c
  [28795.431910] iwl4965 0000:0c:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
  [28795.432084] iwl4965 0000:0c:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
  [28795.432227] iwl4965 0000:0c:00.0:                FH_TSSR_TX_STATUS_REG: 0X07ff0002
  [28795.432367] iwl4965 0000:0c:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
  [28795.440091] iwl4965 0000:0c:00.0: Error sending TX power (-5)
  [306265.406488] iwl4965 0000:0c:00.0: Microcode SW error detected.  Restarting 0x82000000.
  [306265.406502] iwl4965 0000:0c:00.0: Loaded firmware version: 228.61.2.24
  [306265.406544] iwl4965 0000:0c:00.0: Start IWL Error Log Dump:
  [306265.406553] iwl4965 0000:0c:00.0: Status: 0x000213E4, count: 5
  [306265.407876] ieee80211 phy0: Hardware restart was requested

  I changed the card, problem still here;
  I tried an old(er) kernel I had in stock: 3.2.0-32-generic: the problem *totally* disappeared !

  Conclusion: always have an old kernel at hand..

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