On 08/23/2018 12:30 PM, prabhu wrote:
Hi,
BCM 4312 wifi card stopped working from kernel version 4.18
After boot up it tries to reconnect for few times and after that it
disconnected completely.
Here is the snippet from dmesg:
[ 70.826051] [drm:radeon_cs_parser_relocs [radeon]] *ERROR* gem object
lookup failed 0xd
[ 70.826090] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to parse
relocation -2!
[ 238.066341] b43-phy0: Controller RESET (Out of order TX) ...
[ 238.306116] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 245.443095] b43-phy0: Controller restarted
[ 285.552662] wlan0: deauthenticated from 98:de:d0:4b:e6:f6 (Reason:
6=CLASS2_FRAME_FROM_NONAUTH_STA)
[ 285.639719] wlan0: authenticate with 98:de:d0:4b:e6:f6
[ 285.656291] wlan0: send auth to 98:de:d0:4b:e6:f6 (try 1/3)
[ 285.658957] wlan0: authenticated
[ 285.662386] wlan0: associate with 98:de:d0:4b:e6:f6 (try 1/3)
[ 285.665581] wlan0: RX AssocResp from 98:de:d0:4b:e6:f6 (capab=0x431
status=0 aid=2)
[ 285.666396] wlan0: associated
[ 309.348063] b43-phy0: Controller RESET (Out of order TX) ...
[ 309.592485] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 316.742829] b43-phy0: Controller restarted
[ 329.268570] perf: interrupt took too long (2513 > 2500), lowering
kernel.perf_event_max_sample_rate to 79500
[ 400.542426] wlan0: deauthenticated from 98:de:d0:4b:e6:f6 (Reason:
6=CLASS2_FRAME_FROM_NONAUTH_STA)
[ 400.636523] wlan0: authenticate with 98:de:d0:4b:e6:f6
[ 400.652666] wlan0: send auth to 98:de:d0:4b:e6:f6 (try 1/3)
[ 400.655070] wlan0: authenticated
[ 400.655447] wlan0: associate with 98:de:d0:4b:e6:f6 (try 1/3)
[ 400.658583] wlan0: RX AssocResp from 98:de:d0:4b:e6:f6 (capab=0x431
status=0 aid=2)
[ 400.659276] wlan0: associated
[ 412.256359] perf: interrupt took too long (3246 > 3141), lowering
kernel.perf_event_max_sample_rate to 61500
[ 555.832079] b43-phy0: Controller RESET (Out of order TX) ...
[ 556.082050] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 563.172269] b43-phy0: Controller restarted
[ 619.628212] perf: interrupt took too long (4066 > 4057), lowering
kernel.perf_event_max_sample_rate to 48900
[ 766.268349] wlan0: deauthenticated from 98:de:d0:4b:e6:f6 (Reason:
6=CLASS2_FRAME_FROM_NONAUTH_STA)
[ 766.317708] wlan0: authenticate with 98:de:d0:4b:e6:f6
[ 766.338515] wlan0: send auth to 98:de:d0:4b:e6:f6 (try 1/3)
[ 766.345731] wlan0: authenticated
[ 766.347959] wlan0: associate with 98:de:d0:4b:e6:f6 (try 1/3)
[ 766.352674] wlan0: RX AssocResp from 98:de:d0:4b:e6:f6 (capab=0x431
status=0 aid=2)
[ 766.353351] wlan0: associated
[ 801.234010] perf: interrupt took too long (5097 > 5082), lowering
kernel.perf_event_max_sample_rate to 39000
[ 1780.122837] perf: interrupt took too long (6979 > 6371), lowering
kernel.perf_event_max_sample_rate to 28500
[ 2347.465072] b43-phy0: Controller RESET (Out of order TX) ...
[ 2347.705572] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 2354.735641] b43-phy0: Controller restarted
[ 2388.784785] wlan0: deauthenticated from 98:de:d0:4b:e6:f6 (Reason:
6=CLASS2_FRAME_FROM_NONAUTH_STA)
[ 2388.901388] wlan0: authenticate with 98:de:d0:4b:e6:f6
[ 2388.918575] wlan0: send auth to 98:de:d0:4b:e6:f6 (try 1/3)
[ 2388.920893] wlan0: authenticated
[ 2388.921243] wlan0: associate with 98:de:d0:4b:e6:f6 (try 1/3)
[ 2388.924310] wlan0: RX AssocResp from 98:de:d0:4b:e6:f6 (capab=0x431
status=0 aid=2)
[ 2388.925336] wlan0: associated
[ 2973.297286] b43-phy0: Controller RESET (Out of order TX) ...
[ 2973.532792] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 2980.496495] b43-phy0: Controller restarted
[ 5306.648339] wlan0: deauthenticating from 98:de:d0:4b:e6:f6 by local
choice (Reason: 3=DEAUTH_LEAVING)
[ 5306.909377] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 5313.899248] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 5320.225907] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 5327.189103] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 5328.567334] wlan0: authenticate with 98:de:d0:4b:e6:f6
[ 5328.599382] wlan0: send auth to 98:de:d0:4b:e6:f6 (try 1/3)
[ 5328.601751] wlan0: authenticated
[ 5328.602238] wlan0: associate with 98:de:d0:4b:e6:f6 (try 1/3)
[ 5328.605468] wlan0: RX AssocResp from 98:de:d0:4b:e6:f6 (capab=0x431
status=0 aid=2)
[ 5328.606369] wlan0: associated
[ 5328.615757] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 5348.732714] b43-phy0: Controller RESET (Out of order TX) ...
The following commits introduce this regression in 4.18
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66cffd6daab76caebab26eb803b92182414fc182
I verified that in two ways:
1. Downgrade the kernel to 4.17.14 - Fixes the Issue
2. Revert that commit in 4.18.4 - Fixes the Issue
Prabhu,
Thanks for your diagnosis of the problem.
Unfortunately, I was not able to reproduce your problem with my BCM4312 using
kernel 4.18. The only difference I could see is that I am using firmware
version 784.2 rather than 666.2, which you are using. I do not think there was
any difference for LP cores, thus I doubt that the differing versions makes any
difference, but I would like you to see if you can update the firmware. If your
distro does not support newer firmware, let me know and I can send you a couple
of files needed to do an update.
If updating the firmware does not help, then please try the attached patch for
mainline 4.18. It uses the controller reset from the offending patch, but limits
the resets to once every 40 out-of-order reports.
Larry
diff --git a/drivers/net/wireless/broadcom/b43/dma.c b/drivers/net/wireless/broadcom/b43/dma.c
index 6b0e1ec346cb..8291965518ae 100644
--- a/drivers/net/wireless/broadcom/b43/dma.c
+++ b/drivers/net/wireless/broadcom/b43/dma.c
@@ -1484,7 +1484,7 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
int slot, firstused;
bool frame_succeed;
int skip;
- static u8 err_out1;
+ static u8 err_out1, err_out2;
ring = parse_cookie(dev, status->cookie, &slot);
if (unlikely(!ring))
@@ -1519,12 +1519,16 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
} else {
/* More than a single header/data pair were missed.
* Report this error, and reset the controller to
- * revive operation.
+ * revive operation. Do this only every 40 such errors.
*/
- b43dbg(dev->wl,
- "Out of order TX status report on DMA ring %d. Expected %d, but got %d\n",
- ring->index, firstused, slot);
- b43_controller_restart(dev, "Out of order TX");
+ if (!err_out2) {
+ b43dbg(dev->wl,
+ "Out of order TX status report on DMA ring %d. Expected %d, but got %d\n",
+ ring->index, firstused, slot);
+ }
+ if (!(err_out2 % 40))
+ b43_controller_restart(dev, "Out of order TX");
+ err_out2 += 1;
return;
}
}
diff --git a/drivers/staging/rtl8192e/rtllib_module.c b/drivers/staging/rtl8192e/rtllib_module.c
index cdf4c9060c51..834896be0022 100644
--- a/drivers/staging/rtl8192e/rtllib_module.c
+++ b/drivers/staging/rtl8192e/rtllib_module.c
@@ -95,6 +95,7 @@ struct net_device *alloc_rtllib(int sizeof_priv)
pr_err("Unable to allocate net_device.\n");
return NULL;
}
+ strcpy(dev->name, "wlan%d");
ieee = (struct rtllib_device *)netdev_priv_rsl(dev);
memset(ieee, 0, sizeof(struct rtllib_device)+sizeof_priv);
ieee->dev = dev;
