From: "Michał Pecio" <michal.pecio@gmail.com>
To: rtl8821cerfe2@gmail.com
Cc: linux-wireless@vger.kernel.org, pkshih@realtek.com,
sha@pengutronix.de, Kalle Valo <kvalo@kernel.org>
Subject: Re: rtw88: alloc_skb(32768, GFP_ATOMIC) fails, driver gets stuck
Date: Sun, 6 Oct 2024 17:43:31 +0200 [thread overview]
Message-ID: <20241006174331.1c4e6640@foxbook> (raw)
In-Reply-To: <baca0d5d-072e-4003-ab4a-ecc524d6b89b@gmail.com>
Hi,
> I have this problem with RTL8811CU, RTL8723DU, RTL8811AU, RTL8812AU.
Does it mean there are working patches for 8811AU somewhere?
I have this damn thing, lying unused because unsupported.
> The host controller died when I unplugged another device
xhci not responding, assume dead?
Yuck. Maybe linux-usb should hear about it if it's reproducible.
> alloc_skb fails (silently) therefore the RX URB is not submitted
> ever again. There are only 4 RX URBs.
drivers/net/usb/usbnet.c::rx_submit() deals with it by queuing a work
to resubmit the URB later using blocking allocations.
Failure of usb_submit_urb() is handled same way. This too can return
-ENOMEM, on xhci for example.
Regards,
Michal
next prev parent reply other threads:[~2024-10-06 15:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-25 11:46 rtw88: USB devices randomly stop receiving anything Bitterblue Smith
2024-09-26 13:04 ` petter
2024-09-26 16:51 ` Bitterblue Smith
2024-09-27 6:44 ` petter
2024-09-29 11:43 ` Bitterblue Smith
2024-09-30 20:56 ` rtw88: alloc_skb(32768, GFP_ATOMIC) fails, driver gets stuck Bitterblue Smith
2024-10-01 1:25 ` Ping-Ke Shih
2024-10-07 22:03 ` Bitterblue Smith
2024-10-02 10:58 ` Kalle Valo
2024-10-03 4:26 ` Ping-Ke Shih
2024-10-06 15:43 ` Michał Pecio [this message]
2024-10-07 22:04 ` Bitterblue Smith
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