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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Jakub Kicinski <kuba@kernel.org>,
	Luca Coelho <luciano.coelho@intel.com>,
	Kalle Valo <kvalo@codeaurora.org>
Cc: David Miller <davem@davemloft.net>,
	Netdev <netdev@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: [GIT PULL] Networking for v5.15
Date: Wed, 1 Sep 2021 12:00:57 -0700	[thread overview]
Message-ID: <CAHk-=wjB_zBwZ+WR9LOpvgjvaQn=cqryoKigod8QnZs=iYGEhA@mail.gmail.com> (raw)
In-Reply-To: <20210831203727.3852294-1-kuba@kernel.org>

On Tue, Aug 31, 2021 at 1:37 PM Jakub Kicinski <kuba@kernel.org> wrote:
>
> No conflicts at the time of writing. There were conflicts with
> char-misc but I believe Greg dropped the commits in question.

Hmm. I already merged this earlier, but didn't notice a new warning on
my desktop:

  RTNL: assertion failed at net/wireless/reg.c (4025)
  WARNING: CPU: 60 PID: 1720 at net/wireless/reg.c:4025
regulatory_set_wiphy_regd_sync+0x7f/0x90 [cfg80211]
  Call Trace:
   iwl_mvm_init_mcc+0x170/0x190 [iwlmvm]
   iwl_op_mode_mvm_start+0x824/0xa60 [iwlmvm]
   iwl_opmode_register+0xd0/0x130 [iwlwifi]
   init_module+0x23/0x1000 [iwlmvm]

and

  RTNL: assertion failed at net/wireless/reg.c (3106)
  WARNING: CPU: 60 PID: 1720 at net/wireless/reg.c:3106
reg_process_self_managed_hint+0x26c/0x280 [cfg80211]
  Call Trace:
   regulatory_set_wiphy_regd_sync+0x3a/0x90 [cfg80211]
   iwl_mvm_init_mcc+0x170/0x190 [iwlmvm]
   iwl_op_mode_mvm_start+0x824/0xa60 [iwlmvm]
   iwl_opmode_register+0xd0/0x130 [iwlwifi]
   init_module+0x23/0x1000 [iwlmvm]

and

  RTNL: assertion failed at net/wireless/core.c (84)
  WARNING: CPU: 60 PID: 1720 at net/wireless/core.c:84
wiphy_idx_to_wiphy+0x97/0xd0 [cfg80211]
  Call Trace:
   nl80211_common_reg_change_event+0xf9/0x1e0 [cfg80211]
   reg_process_self_managed_hint+0x23d/0x280 [cfg80211]
   regulatory_set_wiphy_regd_sync+0x3a/0x90 [cfg80211]
   iwl_mvm_init_mcc+0x170/0x190 [iwlmvm]
   iwl_op_mode_mvm_start+0x824/0xa60 [iwlmvm]
   iwl_opmode_register+0xd0/0x130 [iwlwifi]
   init_module+0x23/0x1000 [iwlmvm]

and

  RTNL: assertion failed at net/wireless/core.c (61)
  WARNING: CPU: 60 PID: 1720 at net/wireless/core.c:61
wiphy_idx_to_wiphy+0xbf/0xd0 [cfg80211]
  Call Trace:
   nl80211_common_reg_change_event+0xf9/0x1e0 [cfg80211]
   reg_process_self_managed_hint+0x23d/0x280 [cfg80211]
   regulatory_set_wiphy_regd_sync+0x3a/0x90 [cfg80211]
   iwl_mvm_init_mcc+0x170/0x190 [iwlmvm]
   iwl_op_mode_mvm_start+0x824/0xa60 [iwlmvm]
   iwl_opmode_register+0xd0/0x130 [iwlwifi]
   init_module+0x23/0x1000 [iwlmvm]

They all seem to have that same issue, and it looks like the fix would
be to get the RTN lock in iwl_mvm_init_mcc(), but I didn't really look
into it very much.

This is on my desktop, and I actually don't _use_ the wireless on this
machine. I assume it still works despite the warnings, but they should
get fixed.

I *don't* see these warnings on my laptop where I actually use
wireless, but that one uses ath10k_pci, so it seems this is purely a
iwlwifi issue.

I can't be the only one that sees this. Hmm?

                 Linus

  parent reply	other threads:[~2021-09-01 19:01 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-31 20:37 Jakub Kicinski
2021-08-31 23:56 ` pr-tracker-bot
2021-09-01 19:00 ` Linus Torvalds [this message]
2021-09-01 19:41   ` Jakub Kicinski
2021-09-01 19:49     ` Johannes Berg
2021-09-01 21:48       ` Larry Finger
2021-09-02  9:33       ` Coelho, Luciano
2021-09-02 10:11         ` [PATCH] iwlwifi: mvm: add rtnl_lock() in iwl_mvm_start_get_nvm() Luca Coelho
2021-09-02 10:39           ` David Miller
2021-09-02 15:55             ` Linus Torvalds
     [not found]         ` <CAP71bdV1eBm3f1qY0rfigK4VaW5icZ+hU0pw7g6fVM=hGbn7Xw@mail.gmail.com>
2021-09-02 17:16           ` [GIT PULL] Networking for v5.15 Linus Torvalds
2021-09-02  5:55     ` Larry Finger
2021-09-02  7:07       ` Johannes Berg
2021-09-02  0:02 ` John Stultz
2021-09-02  9:25   ` Dan Carpenter
2021-09-02  9:28     ` Srinivas Kandagatla
2021-09-02 10:08       ` [PATCH net] net: qrtr: revert check in qrtr_endpoint_post() Dan Carpenter
2021-09-02 10:40         ` patchwork-bot+netdevbpf
2021-09-04  3:08     ` [GIT PULL] Networking for v5.15 John Stultz

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