Suspend/resume error with AWUS036ACM

Suspend/resume error with AWUS036ACM

[Gonsolo]

Hi all.

After a resume I get the following error:

 +0,000007] UBSAN: invalid-load in
/build/linux-lowlatency-fSdu7c/linux-lowlatency-5.15.0/net/mac80211/status.c:1164:21
[  +0,000004] load of value 255 is not a valid value for type '_Bool'
[  +0,000004] CPU: 22 PID: 387 Comm: kworker/u256:5 Tainted: P
  OE     5.15.0-27-lowlatency #28-Ubuntu
[  +0,000004] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./X399 Phantom Gaming 6, BIOS P1.31 01/14/2021
[  +0,000003] Workqueue: phy0 mt76x02_mac_work [mt76x02_lib]
[  +0,000014] Call Trace:
[  +0,000003]  <TASK>
[  +0,000003]  show_stack+0x52/0x58
[  +0,000006]  dump_stack_lvl+0x4a/0x5f
[  +0,000007]  dump_stack+0x10/0x12
[  +0,000003]  ubsan_epilogue+0x9/0x45
[  +0,000002]  __ubsan_handle_load_invalid_value.cold+0x44/0x49
[  +0,000004]  ieee80211_tx_status_ext.cold+0x4e/0x5f [mac80211]
[  +0,000068]  mt76_tx_status_unlock+0x111/0x160 [mt76]
[  +0,000010]  mt76_tx_status_check+0x68/0x90 [mt76]
[  +0,000009]  mt76x02_mac_work+0x14b/0x240 [mt76x02_lib]
[  +0,000008]  process_one_work+0x222/0x3f0
[  +0,000006]  worker_thread+0x50/0x3f0
[  +0,000004]  ? process_one_work+0x3f0/0x3f0
[  +0,000004]  kthread+0x13b/0x160
[  +0,000003]  ? set_kthread_struct+0x50/0x50
[  +0,000004]  ret_from_fork+0x22/0x30
[  +0,000006]  </TASK>
[  +0,000001] ================================================================================

This is a stock Ubuntu Jammy lowlatency kernel (with Nvidia drivers).

I would be happy to provide all the needed information to resolve this.

I also want to note that the device is running quite unstable (lots of
deauthenticating, network lost, etc...).

Regards,
g

Re: Suspend/resume error with AWUS036ACM

[Stephen Hemminger]

On Thu, 5 May 2022 08:29:52 +0200
Gonsolo <gonsolo@gmail.com> wrote:

> Hi all.
> 
> After a resume I get the following error:
> 
>  +0,000007] UBSAN: invalid-load in
> /build/linux-lowlatency-fSdu7c/linux-lowlatency-5.15.0/net/mac80211/status.c:1164:21
> [  +0,000004] load of value 255 is not a valid value for type '_Bool'
> [  +0,000004] CPU: 22 PID: 387 Comm: kworker/u256:5 Tainted: P
>   OE     5.15.0-27-lowlatency #28-Ubuntu
> [  +0,000004] Hardware name: To Be Filled By O.E.M. To Be Filled By
> O.E.M./X399 Phantom Gaming 6, BIOS P1.31 01/14/2021
> [  +0,000003] Workqueue: phy0 mt76x02_mac_work [mt76x02_lib]
> [  +0,000014] Call Trace:
> [  +0,000003]  <TASK>
> [  +0,000003]  show_stack+0x52/0x58
> [  +0,000006]  dump_stack_lvl+0x4a/0x5f
> [  +0,000007]  dump_stack+0x10/0x12
> [  +0,000003]  ubsan_epilogue+0x9/0x45
> [  +0,000002]  __ubsan_handle_load_invalid_value.cold+0x44/0x49
> [  +0,000004]  ieee80211_tx_status_ext.cold+0x4e/0x5f [mac80211]
> [  +0,000068]  mt76_tx_status_unlock+0x111/0x160 [mt76]
> [  +0,000010]  mt76_tx_status_check+0x68/0x90 [mt76]
> [  +0,000009]  mt76x02_mac_work+0x14b/0x240 [mt76x02_lib]
> [  +0,000008]  process_one_work+0x222/0x3f0
> [  +0,000006]  worker_thread+0x50/0x3f0
> [  +0,000004]  ? process_one_work+0x3f0/0x3f0
> [  +0,000004]  kthread+0x13b/0x160
> [  +0,000003]  ? set_kthread_struct+0x50/0x50
> [  +0,000004]  ret_from_fork+0x22/0x30
> [  +0,000006]  </TASK>
> [  +0,000001] ================================================================================
> 
> This is a stock Ubuntu Jammy lowlatency kernel (with Nvidia drivers).

Contact Ubuntu.  The rule for upstream is if you load out of tree drivers
than that kernel is unsupported.

Re: Suspend/resume error with AWUS036ACM

[Gonsolo]

Dear Stephen,

> Contact Ubuntu.  The rule for upstream is if you load out of tree drivers
> than that kernel is unsupported.

I compiled a stock 5.17.5 kernel from git.kernel.org, installed
without kernel headers (forcing dkms to not build proprietary drivers)
and get the following errors *at boot time* (not suspend/resume):

  +0,000386] wlx00c0cab022a0: associate with 8c:6a:8d:9e:2a:88 (try 1/3)
[  +0,001118] ================================================================================
[  +0,000005] UBSAN: invalid-load in net/mac80211/status.c:1164:21
[  +0,000004] load of value 255 is not a valid value for type '_Bool'
[  +0,000003] CPU: 10 PID: 380 Comm: kworker/u256:5 Not tainted 5.17.5 #3
[  +0,000004] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./X399 Phantom Gaming 6, BIOS P1.31 01/14/2021
[  +0,000003] Workqueue: mt76 mt76u_tx_status_data [mt76_usb]
[  +0,000009] Call Trace:
[  +0,000002]  <TASK>
[  +0,000003]  dump_stack_lvl+0x4c/0x63
[  +0,000009]  dump_stack+0x10/0x12
[  +0,000004]  ubsan_epilogue+0x9/0x45
[  +0,000003]  __ubsan_handle_load_invalid_value.cold+0x44/0x49
[  +0,000004]  ieee80211_tx_status_ext.cold+0x1e/0xb8 [mac80211]
[  +0,000058]  ? __radix_tree_delete+0x91/0x100
[  +0,000006]  mt76_tx_status_unlock+0x119/0x170 [mt76]
[  +0,000011]  mt76x02_send_tx_status+0x1af/0x420 [mt76x02_lib]
[  +0,000009]  mt76x02_tx_status_data+0x47/0x70 [mt76x02_lib]
[  +0,000007]  mt76u_tx_status_data+0x67/0xc0 [mt76_usb]
[  +0,000005]  process_one_work+0x21f/0x3f0
[  +0,000005]  worker_thread+0x50/0x3d0
[  +0,000004]  ? rescuer_thread+0x390/0x390
[  +0,000003]  kthread+0xee/0x120
[  +0,000003]  ? kthread_complete_and_exit+0x20/0x20
[  +0,000004]  ret_from_fork+0x22/0x30
[  +0,000005]  </TASK>
[  +0,000001] ================================================================================
[  +0,003098] wlx00c0cab022a0: RX AssocResp from 8c:6a:8d:9e:2a:88
(capab=0x1411 status=0 aid=16)

I sent the first email because I suspected that the above (locking?)
problem was totally unrelated to the GPU driver.
I hope that this is more helpful.

-- 
g

Re: Suspend/resume error with AWUS036ACM

[Gonsolo]

Going through the source it seems that the concerned field is
is_valid_ack_signal which is never set by mt76, only by ath10k.