Date: Mon, 25 Jan 2010 01:30:59 -0800 (PST) From: Neelkanth Natu <neelnatu@yahoo.com> To: Oleksandr Tymoshenko <gonzo@bluezbox.com>, smeagle@bsdler.de Cc: freebsd-mips@freebsd.org Subject: Re: AR71XX RTC Message-ID: <434364.57659.qm@web34405.mail.mud.yahoo.com> In-Reply-To: <1264351951.2647.93.camel@brain.lan.terror.local>
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Hi Flo, Can you try the following patch and see if it helps with the hang-followed-by-trap problem? I am seeing a similar problem on the Sibyte and this patch gets me past it. best Neel Index: swtch.S =================================================================== --- swtch.S (revision 202961) +++ swtch.S (working copy) @@ -323,7 +323,7 @@ * to be saved with the other registers do so here. */ - sw a3, TD_LOCK(a0) # Switchout td_lock + sw a2, TD_LOCK(a3) # Switchout td_lock mips_sw1: #if defined(SMP) && defined(SCHED_ULE) --- On Sun, 1/24/10, Florian Kruegl <smeagle@bsdler.de> wrote: > From: Florian Kruegl <smeagle@bsdler.de> > Subject: Re: AR71XX RTC > To: "Oleksandr Tymoshenko" <gonzo@bluezbox.com> > Cc: freebsd-mips@freebsd.org > Date: Sunday, January 24, 2010, 8:52 AM > Hi, > > On Sun, 2010-01-24 at 02:41 +0100, Florian Kruegl wrote: > > On Sat, 2010-01-23 at 16:53 -0800, Oleksandr > Tymoshenko wrote: > > > On 2010-01-23, at 4:44 PM, Florian Kruegl wrote: > > > > > > > Hi, > > > > > > > > On Sat, 2010-01-23 at 16:21 -0800, Oleksandr > Tymoshenko wrote: > > > >> On 2010-01-23, at 4:00 PM, Florian > Kruegl wrote: > > > >> > > > >>> Hi, > > > >>> > > > >>> anyone working on pfc2123 driver for > RouterStation Pro? > > > >>> Seems quite well documented, one > issue might be CS hack, but the rest > > > >>> should be straight. > > > >> Driver was commited > yesterday: > > > >> http://svn.freebsd.org/viewvc/base?view=revision&revision=202839 > > > >> > > > >> And yes, CS hack is the problem. I'm > trying to figure out how to fit it into FreeBSD > > > >> SPI framework. > > > > > > > > sounds good, will do an update as soon as i > removed me work from code. > > > > My CS "solution" was more than crude, but > the frames simply didn't > > > > fit... so I am looking forward for a > different one :) > > > > > > Yeah, my CS solution was > dirty hack too. If for "didn't fit" you mean missing last > > > byte of frame then this problem was solved to. > Bug was in AR71XX SPI code: falling > > > edge was not provided for last byte in transfer > in time and RTC chip acts of falling edge. > > > Fix was committed before driver. > > > > > > > > > > > > > code looks similar, can't tell much about result as > kernel hangs for a > > while before getting this: > > > <<<<<<<<<<<<<<<<<<<<<<<<<<< > schnipp > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> > > Trap cause = 2 (TLB miss (load or instr. fetch) - > kernel mode) > > [thread pid 4 tid 100009 ] > > Stopped at > _thread_lock_flags+0x150: > lw v0,60(a3) > > db> bt > > Tracing pid 4 tid 100009 td 0xc0c47270 > > db_trace_thread+30 (?,?,?,?) ra 800a6c10 sz 24 > > 800a6af4+11c (0,?,ffffffff,?) ra 800a6604 sz 32 > > 800a6270+394 (?,?,?,?) ra 800a6794 sz 168 > > db_command_loop+78 (?,?,?,?) ra 800a8e68 sz 24 > > 800a8d60+108 (?,?,?,?) ra 80215ff8 sz 424 > > kdb_trap+f8 (?,?,?,?) ra 80474350 sz 32 > > trap+134c (?,?,?,?) ra 8046b7fc sz 176 > > MipsKernGenException+100 (b,173,804d5de8,deadc0d8) ra > 801c593c sz 200 > > _thread_lock_flags+130 (?,?,?,?) ra 80221f18 sz 56 > > sleepq_broadcast+ac (?,?,?,?) ra 801e5f20 sz 40 > > wakeup+2c (?,?,?,?) ra 8016de18 sz 32 > > g_io_deliver+198 (?,?,?,?) ra 8016bbd4 sz 80 > > 8016b590+644 (?,?,?,?) ra 8016e184 sz 104 > > g_io_schedule_down+2ec (?,?,?,?) ra 8016eb94 sz 64 > > 8016eb18+7c (?,?,?,?) ra 801a331c sz 24 > > fork_exit+a0 (?,?,?,?) ra 80478f10 sz 48 > > fork_trampoline+10 (?,?,?,?) ra 0 sz 0 > > pid 4 > > > <<<<<<<<<<<<<<<<<<<<<<<<<<< > schnapp > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> > > > > will use AR71XX as config file tomorrow, mine has many > additional devs > > configured for booting from usb devices. > > > [...] > > seems to make no difference. removed all mini pci > devs and most code > changes. kernel hangs during bootup for a while. then gets > a trap. > > Source Info: > > -------------------------- schnipp > -------------------------- > brain:head> svn info > Path: . > URL: svn://svn.freebsd.org/base/head > Repository Root: svn://svn.freebsd.org/base > Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f > Revision: 202904 > Node Kind: directory > Schedule: normal > Last Changed Author: marcel > Last Changed Rev: 202904 > Last Changed Date: 2010-01-24 00:16:50 +0100 (Sun, 24 Jan > 2010) > -------------------------- schnapp > -------------------------- > > -------------------------- schnipp > -------------------------- > brain:head> svn stat > ? GRTAGS > ? GSYMS > ? GTAGS > ? GPATH > M sys/kern/vfs_mount.c > M sys/mips/conf/AR71XX > ? sys/dev/pfc2123 > -------------------------- schnapp > -------------------------- > > - vfs_mount should be far away. > - sys/dev/pfc2123 is no longer used. > - sys/mips/conf/AR71XX altered to include pfc2123_rtc > > > -------------------------- schnipp > -------------------------- > FreeBSD 9.0-CURRENT #1: Sun Jan 24 15:58:37 UTC 2010 > > root@pinky.lan.terror.local:/home/smeagle/obj/mips/mips/home/smeagle/src/freebsd/head/sys/AR71XX > mips > real memory = 134217728 (131072K bytes) > avail memory = 125689856 (119MB) > nexus0: <MIPS32 root nexus> > clock0: <Generic MIPS32 ticker> on nexus0 > clock0: [FILTER] > apb0 at irq 4 on nexus0 > apb0: [FILTER] > uart0: <16550 or compatible> on apb0 > uart0: [FILTER] > uart0: console (115200,n,8,1) > pcib0 at irq 0 on nexus0 > pcib0: [FILTER] > pci0: <PCI bus> on pcib0 > pci0: <old, non-VGA display device> at device 0.0 (no > driver attached) > pci0: <processor> at device 17.0 (no driver > attached) > arge0: <Atheros AR71xx built-in ethernet interface> > at mem > 0x19000000-0x19000fff irq 2 on nexus0 > miibus0: <MII bus> on arge0 > ukphy0: <Generic IEEE 802.3u media interface> PHY 4 > on miibus0 > ukphy0: 10baseT, 10baseT-FDX, 100baseTX, > 100baseTX-FDX, 1000baseT-FDX, > auto > arge0: Ethernet address: 00:00:00:00:46:61 > arge0: [FILTER+ITHREAD] > arge1: <Atheros AR71xx built-in ethernet interface> > at mem > 0x1a000000-0x1a000fff irq 3 on nexus0 > arge1: Ethernet address: 00:00:00:00:46:62 > arge1: [FILTER+ITHREAD] > spi0: <AR71XX SPI> at mem 0x1f000000-0x1f00000f on > nexus0 > spibus0: <spibus bus> on spi0 > mx25l0: <M25Pxx Flash Family> at cs 0 on spibus0 > mx25l0: mx25ll128, sector 65536 bytes, 256 sectors > ar71xx_wdog0: <Atheros AR71XX watchdog timer> on > nexus0 > Timecounter "MIPS32" frequency 360000000 Hz quality 800 > Timecounters tick every 1.000 msec > bootpc_init: wired to interface 'arge0' > Sending DHCP Discover packet from interface arge0 > (00:00:00:00:46:61) > arge0: link state changed to DOWN > Trap cause = 2 (TLB miss (load or instr. fetch) - kernel > mode) > [thread pid 4 tid 100008 ] > Stopped at > _thread_lock_flags+0x150: > lw v0,60(a3) > db> bt > Tracing pid 4 tid 100008 td 0xc0c414e0 > db_trace_thread+30 (?,?,?,?) ra 80055900 sz 24 > 800557e4+11c (0,?,ffffffff,?) ra 800552f4 sz 32 > 80054f60+394 (?,?,?,?) ra 80055484 sz 168 > db_command_loop+78 (?,?,?,?) ra 80057b58 sz 24 > 80057a50+108 (?,?,?,?) ra 8017b7d8 sz 424 > kdb_trap+f8 (?,?,?,?) ra 8035ab40 sz 32 > trap+134c (?,?,?,?) ra 80351fec sz 176 > MipsKernGenException+100 (b,173,8039ce74,deadc0d8) ra > 8012c92c sz 200 > _thread_lock_flags+130 (?,?,?,?) ra 801876f8 sz 56 > sleepq_broadcast+ac (?,?,?,?) ra 8014b700 sz 40 > wakeup+2c (?,?,?,?) ra 800d6ba8 sz 32 > g_io_deliver+198 (?,?,?,?) ra 800d4964 sz 80 > 800d4320+644 (?,?,?,?) ra 800d6f14 sz 104 > g_io_schedule_down+2ec (?,?,?,?) ra 800d7924 sz 64 > 800d78a8+7c (?,?,?,?) ra 8010c0ac sz 24 > fork_exit+a0 (?,?,?,?) ra 8035f700 sz 48 > fork_trampoline+10 (?,?,?,?) ra 0 sz 0 > pid 4 > -------------------------- schnapp > -------------------------- > > > > > Flo > > _______________________________________________ > freebsd-mips@freebsd.org > mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-mips > To unsubscribe, send any mail to "freebsd-mips-unsubscribe@freebsd.org" >help
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