From owner-freebsd-current@FreeBSD.ORG Tue Feb 10 20:51:27 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 238DC1065670 for ; Tue, 10 Feb 2009 20:51:27 +0000 (UTC) (envelope-from c47g@gmx.at) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by mx1.freebsd.org (Postfix) with SMTP id E14768FC21 for ; Tue, 10 Feb 2009 20:51:25 +0000 (UTC) (envelope-from c47g@gmx.at) Received: (qmail invoked by alias); 10 Feb 2009 20:51:23 -0000 Received: from cm56-152-15.liwest.at (EHLO bones) [86.56.152.15] by mail.gmx.net (mp037) with SMTP; 10 Feb 2009 21:51:23 +0100 X-Authenticated: #9978462 X-Provags-ID: V01U2FsdGVkX19B0QQBZtNB/cBIBbICpq7PrJWW9f6eQorAYkWusI /etbJ47MdfteIH From: Christian Gusenbauer To: freebsd-current@freebsd.org Date: Tue, 10 Feb 2009 21:51:49 +0100 User-Agent: KMail/1.9.10 References: <200902021643.39862.c47g@gmx.at> <200902091458.41637.jhb@freebsd.org> <20090210201447.GA1664@wep4035.physik.uni-wuerzburg.de> In-Reply-To: <20090210201447.GA1664@wep4035.physik.uni-wuerzburg.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200902102151.49625.c47g@gmx.at> X-Y-GMX-Trusted: 0 X-FuHaFi: 0.44 Cc: Alexey Shuvaev Subject: Re: lpt stopped working X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Feb 2009 20:51:27 -0000 On Tuesday 10 February 2009, Alexey Shuvaev wrote: > On Mon, Feb 09, 2009 at 02:58:41PM -0500, John Baldwin wrote: > > On Monday 09 February 2009 1:58:39 pm Christian Gusenbauer wrote: > > > On Monday 09 February 2009, John Baldwin wrote: > > > > Please help to debug this so we can have working lpt0 in 8.0. No one > > > > tested the patches months ago when I first posted them, and if folks > > > > do > > > > not > > > > > > test them now I will simply remove the driver before 8.0 ships. I no > > > > > > Mea culpa, too. As you sent your patches, I thought someone else will > > > do the tests surely ... :-(. > > > > > > > longer have any hardware such that I can test this directly, so I am > > > > depending on folks to test things I have asked for and report back. > > > > I believe the last thing I asked for was for someone to do this when > > > > they > > > > lpt > > > > > > was hung: > > > > > > > > Ok, can you run kgdb against your running kernel (Just run 'kgdb' > > > > without any arguments) and do the following: > > > > > > > > (kgdb) p *(struct ppb_data *)ppbus_devclass->devices[0]->softc > > > > > > > > Assuming the ppb_owner is not 0, can you then do this: > > > > > > > > (kgdb) p *(device_t)((struct ppb_data > > > > *)ppbus_devclass->devices[0]->softc)->ppb_owner > > > > > > This is the output (unfortunately ppb_owner IS 0): > > > > > > (kgdb) p *(struct ppb_data *)ppbus_devclass->devices[0]->softc > > > $1 = {class_id = 10, state = 1, error = 0, mode = 0, ppb_owner = 0x0, > > > ppc_lock = 0xc56bfe7c, ppc_irq_res = 0xc573d5c0} > > > > And this is while lpd or the like is hung trying to write to /dev/lpt0? > > Hello all! > > Ok, here we go. 1st, the system: > ~> uname -a > FreeBSD wep4035 8.0-CURRENT FreeBSD 8.0-CURRENT #0: Sat Feb 7 20:25:10 CET > 2009 root@wep4035:/usr/obj/usr/src/sys/NOUSB amd64 > > Parallel port (from dmesg): > ppc0: port 0x378-0x37f,0x778-0x77f irq 7 drq 3 on acpi0 > ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode > ppc0: FIFO with 16/16/9 bytes threshold > ppc0: [ITHREAD] > ppbus0: on ppc0 > ppbus0: IEEE1284 device found /NIBBLE/ECP > ppbus0: Probing for PnP devices: > ppbus0: PRINTER MLC,PCL,PML,SCL > plip0: on ppbus0 > plip0: [ITHREAD] > lpt0: on ppbus0 > lpt0: [ITHREAD] > lpt0: Interrupt-driven port > ppi0: on ppbus0 > > I have simplified things and do not run lpd. The command is: > 'ktrace -id cat monitor_info > /dev/lpt0' > (I think it should work?) > kdump -E > ktrace.dump does not show anything interesting: > [snip] > 1564 cat 0.001120 CALL open(0x7fffffffee1c,O_RDONLY,0x6d) > 1564 cat 0.001127 NAMI "monitor_info" > 1564 cat 0.001143 RET open 3 > 1564 cat 0.001149 CALL fstat(0x1,0x7fffffffeac0) > 1564 cat 0.001155 STRU struct stat {dev=83951360, ino=53, > mode=crw-rw--- - , nlink=1, uid=0, gid=0, rdev=53, > atime=1234294743.332164000, stime=1234294743 .332164000, ctime=1234294974, > birthtime=-1, size=0, blksize=4096, blocks=0, flag s=0x0 } > 1564 cat 0.001160 RET fstat 0 > 1564 cat 0.001180 CALL > __sysctl(0x7fffffffea20,0x2,0x80085eeb8,0x7ffffff fea18,0,0) > 1564 cat 0.001187 RET __sysctl 0 > 1564 cat 0.001191 CALL > __sysctl(0x7fffffffea60,0x2,0x7fffffffea7c,0x7fff ffffea70,0,0) > 1564 cat 0.001198 RET __sysctl 0 > 1564 cat 0.001203 CALL > __sysctl(0x7fffffffea60,0x2,0x7fffffffea7c,0x7fffffffea70,0,0) 1564 cat > 0.001208 RET __sysctl 0 > 1564 cat 0.001230 CALL > __sysctl(0x7fffffffe5f0,0x2,0x8008509e8,0x7fffffffe5e8,0,0) 1564 cat > 0.001236 RET __sysctl 0 > 1564 cat 0.001242 CALL readlink(0x800722639,0x7fffffffe610,0x400) > 1564 cat 0.001248 NAMI "/etc/malloc.conf" > 1564 cat 0.001264 RET readlink -1 errno 2 No such file or > directory 1564 cat 0.001270 CALL issetugid > 1564 cat 0.001275 RET issetugid 0 > 1564 cat 0.001296 CALL break(0x600000) > 1564 cat 0.001302 RET break 0 > 1564 cat 0.001317 CALL > __sysctl(0x7fffffffe850,0x2,0x7fffffffe86c,0x7fffffffe860,0,0) 1564 cat > 0.001324 RET __sysctl 0 > 1564 cat 0.001329 CALL > mmap(0,0x100000,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,0xffffffff,0) > 1564 cat 0.001335 RET mmap 8790016/0x800862000 > 1564 cat 0.001340 CALL > mmap(0x800962000,0x9e000,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,0xffffff >ff,0) 1564 cat 0.001346 RET mmap 9838592/0x800962000 > 1564 cat 0.001351 CALL munmap(0x800862000,0x9e000) > 1564 cat 0.001359 RET munmap 0 > 1564 cat 0.001378 CALL read(0x3,0x800902000,0x1000) > 1564 cat 0.006845 GIO fd 3 read 4096 bytes > "(II) VESA(0): VESA VBE DDC supported > (II) VESA(0): VESA VBE DDC Level 2 > (II) VESA(0): VESA VBE DDC transfer in appr. 1 sec. > (==) VESA(0): Write-combining range (0x0,0x1000) was already clear > (==) VESA(0): Write-combining range (0x0,0x1000) was already clear > [snip] > 1 604 625 +hsync +vsync (46.9 kHz) > (II) VESA(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 > 63\ 7 643 666 +hsync +vsync (48.1 kHz) > (II) VESA(0): Modeline "1280x1024"x60.0 108.88 1280 1360 1496 > 1712 \ 1024 1025 1028 1060 -hsync +vsync (63.6 kHz) > (II) VESA(0): Modeline "1680x1050"x60.0 147.14 16" > 1564 cat 0.006879 RET read 4096/0x1000 > 1564 cat 0.006888 CALL write(0x1,0x800902000,0x1000) > 1564 cat 114.695563 RET write RESTART > 1564 cat 114.695637 PSIG SIGINT SIG_DFL > > After 114 seconds I have hit Ctrl-C. > > And this is from kgdb: > (kgdb) p *(struct ppb_data *)ppbus_devclass->devices[0]->softc > $1 = {class_id = 0, state = 1, error = 0, mode = 0, > ppb_owner = 0xffffff0004668700, ppc_lock = 0xffffff0004668eb8, > ppc_irq_res = 0xffffff0004677900} > (kgdb) p *(device_t)((struct > ppb_data*)ppbus_devclass->devices[0]->softc)->ppb _owner > $2 = {ops = 0xffffff0001520000, link = {tqe_next = 0xffffff0004668500, > tqe_prev = 0xffffff0004668908}, devlink = {tqe_next = > 0xffffff0004668500, tqe_prev = 0xffffff0004668918}, parent = > 0xffffff0004669000, children = { tqh_first = 0x0, tqh_last = > 0xffffff0004668730}, > driver = 0xffffffff806961c0, devclass = 0xffffff00014f4900, unit = 0, > nameunit = 0xffffff0004666940 "lpt0", desc = 0xffffffff804fc110 > "Printer", busy = 0, state = DS_ATTACHED, devflags = 0, flags = 7, order = > 0 '\0', pad = 0 '\0', ivars = 0xffffff0004668800, softc = > 0xffffff0004668400, sysctl_ctx = {tqh_first = 0xffffff0004674180, > tqh_last = 0xffffff0004674288}, sysctl_tree = 0xffffff000467d480} > (kgdb) > > The driver stays in this state even after exit of 'cat' process > (I think this was already reported): > ~> cat monitor_info > /dev/lpt0 > /dev/lpt0: Device busy. > > I can play with the printer et. al. (ppi, maybe plip) in the evenings, > so if you need something else... > > Alexey. > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" I second that. I do not use lpd, too. Just a plain cat as Alexey does. @John: sorry, it seems that I still do not get your mails :-(. Christian.