On 02.04.23 13:30, Linux regression tracking #adding (Thorsten Leemhuis) wrote: > On 31.03.23 14:59, Sascha Hauer wrote: >> On Sun, Jan 08, 2023 at 10:13:22PM +0100, Martin Blumenstingl wrote: >>> USB and (upcoming) SDIO support may sleep in the read/write handlers. >>> Shrink the RCU critical section so it only cover the call to >>> ieee80211_find_sta() and finding the ic_vht_cap/vht_cap based on the >>> found station. This moves the chip's BFEE configuration outside the >>> rcu_read_lock section and thus prevent "scheduling while atomic" or >>> "Voluntary context switch within RCU read-side critical section!" >>> warnings when accessing the registers using an SDIO card (which is >>> where this issue has been spotted in the real world - but it also >>> affects USB cards). >> >> Unfortunately this introduces a regression on my RTW8821CU chip. With >> this it constantly looses connection to the AP and reconnects shortly >> after: > > #regzbot ^introduced c7eca79def44 > #regzbot title net: wifi: rtw88: RTW8821CU constantly looses connection > to the AP and reconnects shortly after > #regzbot ignore-activity Forgot to resolve this in regzbot: #regzbot resolve: turn's out this wasn't a regression, see https://lore.kernel.org/lkml/20230403100043.GT19113@xxxxxxxxxxxxxx/ #regzbot ignore-activity Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr That page also explains what to do if mails like this annoy you.
