[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 Andriy Voskoboinyk changed: What|Removed |Added See Also||https://bugs.freebsd.org/bu ||gzilla/show_bug.cgi?id=1461 ||65 -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 Andriy Voskoboinyk changed: What|Removed |Added See Also||https://bugs.freebsd.org/bu ||gzilla/show_bug.cgi?id=2086 ||36 -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 Andriy Voskoboinyk changed: What|Removed |Added Resolution|--- |FIXED Status|In Progress |Closed -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 --- Comment #8 from commit-h...@freebsd.org --- A commit references this bug: Author: avos Date: Mon Feb 29 21:09:10 UTC 2016 New revision: 296237 URL: https://svnweb.freebsd.org/changeset/base/296237 Log: net80211: fix scanning after D5145 (PR 197498 related) - In case, when we are doing -> INIT (FEXT_REINIT) -> state transition, cancel_scan() may be called in the first transition. Reenqueue second state transition, so things will be executed in order. - Discard any AUTH+ state transition request when INIT -> SCAN transition is not done. - Allow to track discarded state transitions via 'state' debugging category. Tested with: * RTL8188EU, HOSTAP mode. * RTL8188CUS, STA mode. * Intel 3945BG, IBSS and STA modes. PR: 197498 Approved by: adrian (mentor) Differential Revision:https://reviews.freebsd.org/D5482 Changes: head/sys/net80211/ieee80211_proto.c -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 --- Comment #7 from Andriy Voskoboinyk --- After https://reviews.freebsd.org/D5145 (I remember, that this case does not work, so I have not tested it) scanning is broken into smaller parts; however newstate_cb() was not. As a result: 1), 2) just the same 3) INIT -> SCAN, scanning starts 4) the same 5) SCAN -> SCAN (w/ FEXT_REINIT flag); the task waits untill scan_curchan_task() ends; 6) SCAN -> INIT, FEXT_REINIT is dropped; 7) right here, without waiting untill scan ends, INIT -> SCAN state transition tries to go (but, since F_SCAN flag is set, it hangs here forever). -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 Andriy Voskoboinyk changed: What|Removed |Added Status|Open|In Progress --- Comment #6 from Andriy Voskoboinyk --- Before https://reviews.freebsd.org/D5145, scanning and -> INIT (FEXT REINIT) -> state transition were two solid parts. How things were worked: 1) network.subr executes 'ifconfig up', INIT -> SCAN (w/ FEXT_REINIT flag) state transition happens; 2) INIT -> INIT, FEXT_REINIT dropped; 3) INIT -> SCAN, scanning starts (and cannot be interrupted, since newstate_cb() uses the same taskqueue) 4) network.subr executes hostapd / wpa_supplicant -> interface reinitializes. 5) SCAN -> SCAN (w/ FEXT_REINIT flag); the task was enqueued, but (!) will not be executed untill scan ends; 6) scan ends (no networks were seen, so it decides to create another one); SCAN -> RUN state transition is enqueued (FEXT_REINIT is still here, but nstate will be changed to RUN). 7) newstate_cb() is executed, SCAN -> INIT state transition (everything is dropped via ieee80211_reset_bss() call). 8) and INIT -> RUN state transition is issued (with corresponding result). Note: FEXT_REINIT is not added in STA mode, so it's not affected by this bug. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 --- Comment #5 from Adrian Chadd --- ok, that's weird. wonder why it hung around buggy for this long unnoticed. I'm reviewing your scan stuff, so after that yeah, i'll see what removing that line really does everywhere. aiee! -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 Andriy Voskoboinyk changed: What|Removed |Added CC||a...@freebsd.org Status|New |Open --- Comment #4 from Andriy Voskoboinyk --- Looks like removing 'vap->iv_flags_ext |= IEEE80211_FEXT_REINIT;' line from ieee80211_proto.c fixes this issue. -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 --- Comment #3 from Andriy Voskoboinyk --- (In reply to Adrian Chadd from comment #2) Yes, vap->iv_bss is still unitialized. P.S. On my machine (i386, r282543M), (IEEE80211_CHAN_ANYC)->ic_flags dereference does not result in kernel panic - instead, kernel just reads some junk from this address (regression?). -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 Adrian Chadd changed: What|Removed |Added CC||adr...@freebsd.org --- Comment #2 from Adrian Chadd --- Is this still a problem? -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 --- Comment #1 from Andriy Voskoboinyk --- Created attachment 152817 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=152817&action=edit backtrace -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
[Bug 197498] [net80211]: Setting ssid on running interface in adhoc mode causes panic
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197498 Bug ID: 197498 Summary: [net80211]: Setting ssid on running interface in adhoc mode causes panic Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: wireless Assignee: freebsd-wireless@FreeBSD.org Reporter: s3er...@gmail.com Created attachment 152816 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=152816&action=edit messages I can reliably reproduce it with rum and wpi (without workaround in wpi_run()). How-to-repeat: ifconfig wlan0 create wlandev rum0 wlanmode ibss && wlandebug debug+input+state && ifconfig wlan0 up && ifconfig wlan0 ssid ssid -- You are receiving this mail because: You are the assignee for the bug. ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
