Date: Thu, 4 Jun 2015 14:29:22 +0300 From: Gleb Smirnoff <glebius@FreeBSD.org> To: Michael Moll <kvedulv@kvedulv.de> Cc: adrian@FreeBSD.org, current@FreeBSD.org Subject: Re: converted iwi(4) for testing Was: [Testers needed!] WiFi drivers changes Message-ID: <20150604112922.GH73119@glebius.int.ru> In-Reply-To: <20150603195156.GA56984@darkthrone.kvedulv.de> References: <20150602162021.GI73119@glebius.int.ru> <20150602214736.GA87969@darkthrone.kvedulv.de> <20150602224806.GK73119@glebius.int.ru> <20150602233501.GB87969@darkthrone.kvedulv.de> <20150603104222.GP73119@glebius.int.ru> <20150603195156.GA56984@darkthrone.kvedulv.de>
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On Wed, Jun 03, 2015 at 09:51:56PM +0200, Michael Moll wrote: M> All working well, the only thing I'm seeing is that a shutdown or reboot M> is hanging, tracing via kdb shows: M> M> Tracing command wpa_supplicant pid 293 tid 100075 td 0xc81b7960 M> sched_switch(c81b7960,0,104,0,0,...) at sched_switch+0x2d8/frame 0xc72b88f4 M> mi_switch(104,0,c81b7960,c72b8944,c81b7960,c78e00b0) at mi_switch+0x11e/frame 0xc72b8928 M> sleepq_switch(c81b7960,0,c12d53b2,276,2710,...) at sleepq_switch+0x15b/frame 0xc72b8950 M> sleepq_wait(c78e00b0,6c,c12c0672,0,0,...) at sleepq_wait+0x3f/frame 0xc72b897c M> _sleep(c78e00b0,c7775c98,6c,c12c0672,0,...) at _sleep+0x311/frame 0xc72b89c0 M> taskqueue_drain(c7775c80,c78e00b0,c81b7960,c72b8a48,c0d0f121,...) at taskqueue_drain+0x1a5/frame 0xc72b89fc M> ieee80211_waitfor_parent(c78e0014,0,0,0,0,...) at ieee80211_waitfor_parent+0x30/frame 0xc72b8a10 M> ieee80211_ioctl(c7879400,80206910,c72b8b78,c72b8a78,c0b9515c,...) at ieee80211_ioctl+0x391/frame 0xc72b8a48 M> ifioctl(c88fe720,80206910,c72b8b78,c81b7960,10000000,...) at ifioctl+0x144a/frame 0xc72b8ad4 M> soo_ioctl(c8664700,80206910,c72b8b78,c76ee900,c81b7960,...) at soo_ioctl+0x25d/frame 0xc72b8b08 M> kern_ioctl(c81b7960,3,80206910,c72b8b78,10,...) at kern_ioctl+0x31d/frame 0xc72b8b50 M> sys_ioctl(c81b7960,c72b8ca8,28ce9000,283f8f12,c77189c0,...) at sys_ioctl+0x11b/frame 0xc72b8c10 M> syscall(c72b8ce8) at syscall+0x5e0/frame 0xc72b8cdc M> Xint0x80_syscall() at Xint0x80_syscall+0x21/frame 0xc72b8cdc M> --- syscall (54, FreeBSD ELF32, sys_ioctl), eip = 0x284a1d4f, esp = 0xbfbfec3c, ebp = 0xbfbfec98 --- M> M> But i guess that might be another iwi bug that got uncovered now and M> is not related to the conversion. Since, ieee80211_waitfor_parent() waits for 6 different taskqueues, I need to determine which one is the bad. Since you are running i386, and right now I don't have crossdebugger, it would be easier to ask you, rather than check this out myself :) Can you please run 'kgdb /boot/kernel/kernel', and there in the kgdb prompt the following: (kgdb) set $ic = (struct ieee80211com *)0 (kgdb) p &$ic->ic_parent_task (kgdb) p &$ic->ic_mcast_task (kgdb) p &$ic->ic_promisc_task (kgdb) p &$ic->ic_chan_task (kgdb) p &$ic->ic_bmiss_task (kgdb) p &$ic->ic_chw_task -- Totus tuus, Glebius.
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