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Re: rtw88: alloc_skb(32768, GFP_ATOMIC) fails, driver gets stuck

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Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx> writes:

> I still don't know why qBittorrent is required to trigger this bug,
> but I found the problem.
>
> alloc_skb fails (silently) therefore the RX URB is not submitted
> ever again. There are only 4 RX URBs.

Why is alloc_skb() failing silently? Or is that by design? I was under
impression that we should not have error messages for allocation
failures but is that only for kmalloc() & co?

I did a quick look and in wireless drivers some of the alloc_skb()
callers print an error and some fail silently. I think we should start
printing errors for all alloc_skb() calls. Thoughts?

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches




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