Hello Thomas, That's surprising regression, I'll try to reproduce it next week. - Mathy On 10/15/20 5:44 AM, Thomas Deutschmann wrote: > Hi, > > after upgrading to linux-5.9.0 I noticed that my wifi got disassociated > every 10 minutes when access point triggered rekeying for GTK. > > This happened with iwd but not with wpa_supplicant. iwd was logging > >> wlan0: disassociated from aa:bb:cc:dd:ap:01 (Reason: >> 2=PREV_AUTH_NOT_VALID) >> wlan0: authenticate with aa:bb:cc:dd:ap:01 >> wlan0: send auth to aa:bb:cc:dd:ap:01 (try 1/3) >> wlan0: authenticated >> wlan0: associate with aa:bb:cc:dd:ap:01 (try 1/3) >> wlan0: RX AssocResp from aa:bb:cc:dd:ap:01 (capab=0x1511 status=0 aid=1) >> wlan0: associated > > With the help of iwd developers (many thanks!) we noticed that EAPoL > packets didn't reach access point. As workaround, using the legacy way > to send EAPoL packets by setting > >> [General] >> ControlPortOverNL80211=False > > in iwd's main.conf, worked. So it became clear that this is a kernel > problem. > > I now finished bisecting the kernel and > 1df2bdba528b5a7a30f1b107b6924aa79af5e00e [1] is the first bad commit: > >> commit 1df2bdba528b5a7a30f1b107b6924aa79af5e00e >> Author: Mathy Vanhoef >> Date: Thu Jul 23 14:01:48 2020 +0400 >> >> mac80211: never drop injected frames even if normally not allowed >> >> In ieee80211_tx_dequeue there is a check to see if the dequeued frame >> is allowed in the current state. Injected frames that are normally >> not allowed are being be dropped here. Fix this by checking if a >> frame was injected and if so always allowing it. >> >> Signed-off-by: Mathy Vanhoef >> Link: >> https://lore.kernel.org/r/20200723100153.31631-1-Mathy.Vanhoef@xxxxxxxxxxx >> >> Signed-off-by: Johannes Berg >> >> net/mac80211/tx.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) > > Complete bisect log: > >> git bisect start >> # good: [665c6ff082e214537beef2e39ec366cddf446d52] Linux 5.8.15 >> git bisect good 665c6ff082e214537beef2e39ec366cddf446d52 >> # bad: [bbf5c979011a099af5dc76498918ed7df445635b] Linux 5.9 >> git bisect bad bbf5c979011a099af5dc76498918ed7df445635b >> # good: [bcf876870b95592b52519ed4aafcf9d95999bc9c] Linux 5.8 >> git bisect good bcf876870b95592b52519ed4aafcf9d95999bc9c >> # bad: [47ec5303d73ea344e84f46660fff693c57641386] Merge >> git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next >> git bisect bad 47ec5303d73ea344e84f46660fff693c57641386 >> # good: [8f7be6291529011a58856bf178f52ed5751c68ac] Merge tag >> 'mmc-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc >> git bisect good 8f7be6291529011a58856bf178f52ed5751c68ac >> # bad: [76769c38b45d94f5492ff9be363ac7007fd8e58b] Merge tag >> 'mlx5-updates-2020-08-03' of >> git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux >> git bisect bad 76769c38b45d94f5492ff9be363ac7007fd8e58b >> # good: [94d9f78f4d64b967273a676167bd34ddad2f978c] docs: networking: >> timestamping: add section for stacked PHC devices >> git bisect good 94d9f78f4d64b967273a676167bd34ddad2f978c >> # good: [5ee30564c85c94b7dc78aa6cce09e9712b2ad70d] ice: update >> reporting of autoneg capabilities >> git bisect good 5ee30564c85c94b7dc78aa6cce09e9712b2ad70d >> # good: [bd69058f50d5ffa659423bcfa6fe6280ce9c760a] net: ll_temac: Use >> devm_platform_ioremap_resource_byname() >> git bisect good bd69058f50d5ffa659423bcfa6fe6280ce9c760a >> # skip: [7dbc63f0a5402293e887e89a7974c5e48405565d] ice: Misc minor fixes >> git bisect skip 7dbc63f0a5402293e887e89a7974c5e48405565d >> # good: [1303a51c24100b3b1915d6f9072fe5ae5bb4c5f6] cfg80211/mac80211: >> add connected to auth server to station info >> git bisect good 1303a51c24100b3b1915d6f9072fe5ae5bb4c5f6 >> # skip: [f34f55557ac9a4dfbfbf36c70585d1648ab5cd90] ice: Allow 2 queue >> pairs per VF on SR-IOV initialization >> git bisect skip f34f55557ac9a4dfbfbf36c70585d1648ab5cd90 >> # bad: [cc5d229a122106733a85c279d89d7703f21e4d4f] fsl/fman: check >> dereferencing null pointer >> git bisect bad cc5d229a122106733a85c279d89d7703f21e4d4f >> # good: [6fc8c827dd4fa615965c4eac9bbfd465f6eb8fb4] tcp: syncookies: >> create mptcp request socket for ACK cookies with MPTCP option >> git bisect good 6fc8c827dd4fa615965c4eac9bbfd465f6eb8fb4 >> # bad: [b90a1269184a3ff374562d243419ad2fa9d3b1aa] Merge branch >> 'net-openvswitch-masks-cache-enhancements' >> git bisect bad b90a1269184a3ff374562d243419ad2fa9d3b1aa >> # skip: [829eb208e80d6db95c0201cb8fa00c2f9ad87faf] rtnetlink: add >> support for protodown reason >> git bisect skip 829eb208e80d6db95c0201cb8fa00c2f9ad87faf >> # bad: [0e8642cf369a37b718c15effa6ffd52c00fd7d15] tcp: fix build fong >> CONFIG_MPTCP=n >> git bisect bad 0e8642cf369a37b718c15effa6ffd52c00fd7d15 >> # skip: [48040793fa6003d211f021c6ad273477bcd90d91] tcp: add earliest >> departure time to SCM_TIMESTAMPING_OPT_STATS >> git bisect skip 48040793fa6003d211f021c6ad273477bcd90d91 >> # good: [bc5cbd73eb493944b8665dc517f684c40eb18a4a] iavf: use generic >> power management >> git bisect good bc5cbd73eb493944b8665dc517f684c40eb18a4a >> # skip: [8f3f330da28ede9d106cd9d5c5ccd6a3e7e9b50b] tun: add missing >> rcu annotation in tun_set_ebpf() >> git bisect skip 8f3f330da28ede9d106cd9d5c5ccd6a3e7e9b50b >> # skip: [9466a1ccebbe54ac57fb8a89c2b4b854826546a8] mptcp: enable JOIN >> requests even if cookies are in use >> git bisect skip 9466a1ccebbe54ac57fb8a89c2b4b854826546a8 >> # good: [09a071f52bbedddef626e71c0fd210838532f347] Documentation: >> intel: Replace HTTP links with HTTPS ones >> git bisect good 09a071f52bbedddef626e71c0fd210838532f347 >> # bad: [75e6b594bbaeeb3f8287a2e6eb8811384b8c7195] cfg80211: invert HE >> BSS color 'disabled' to 'enabled' >> git bisect bad 75e6b594bbaeeb3f8287a2e6eb8811384b8c7195 >> # bad: [1df2bdba528b5a7a30f1b107b6924aa79af5e00e] mac80211: never drop >> injected frames even if normally not allowed >> git bisect bad 1df2bdba528b5a7a30f1b107b6924aa79af5e00e >> # good: [180ac48ee62f53c26787350a956c5ac371cbe0b7] mac80211: calculate >> skb hash early when using itxq >> git bisect good 180ac48ee62f53c26787350a956c5ac371cbe0b7 >> # good: [322cd27c06450b2db2cb6bdc68f3814149baf767] cfg80211/mac80211: >> avoid bss color setting in non-HE modes >> git bisect good 322cd27c06450b2db2cb6bdc68f3814149baf767 >> # good: [fd17dba1c860d39f655a3a08387c21e3ceca8c55] cfg80211: Add >> support to advertize OCV support >> git bisect good fd17dba1c860d39f655a3a08387c21e3ceca8c55 >> # first bad commit: [1df2bdba528b5a7a30f1b107b6924aa79af5e00e] >> mac80211: never drop injected frames even if normally not allowed > > > See also: > ========= > [1] > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1df2bdba528b5a7a30f1b107b6924aa79af5e00e > > >
