From owner-freebsd-current Tue Jan 21 14:19:50 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C3A2E37B401 for ; Tue, 21 Jan 2003 14:19:31 -0800 (PST) Received: from warrior.services.quay.plus.net (warrior.services.quay.plus.net [212.159.14.227]) by mx1.FreeBSD.org (Postfix) with SMTP id 4A15443F3F for ; Tue, 21 Jan 2003 14:19:29 -0800 (PST) (envelope-from trent@limekiln.vcisp.net) Received: (qmail 18224 invoked from network); 21 Jan 2003 22:19:26 -0000 Received: from limekiln.vcisp.net (212.159.16.110) by warrior.services.quay.plus.net with SMTP; 21 Jan 2003 22:19:26 -0000 Received: by limekiln.vcisp.net (Postfix, from userid 1001) id C98F5236; Tue, 21 Jan 2003 22:19:19 +0000 (GMT) Date: Tue, 21 Jan 2003 22:19:19 +0000 From: Trent Nelson To: freebsd-current@FreeBSD.ORG Cc: tnelson@switch.com, nate@root.org Subject: Re: System freeze running -current Message-ID: <20030121221919.GB14964@limekiln.vcisp.net> References: <20030103151234.GA21140@arpa.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030103151234.GA21140@arpa.com> User-Agent: Mutt/1.5.1i Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hurrah, I was able to get the output from a trace when the problem described below occurs. db> trace Debugger(c0357efe,4,1,0,1) at Debugger+0x54 scgetc(c03c8400,2,b45afa2e,16166842,c25a6180) at scgetc+0x445 sckbdevent(c03a31e0,0,c03c8400,d1d51ccc,4e) at sckbdevent+0x1e0 atkbd_intr(c03a31e0,0,d1d51d08,c01ca531,c03a31e0) at atkbd_intr+0x2c atkbd_isa_intr(c03a31e0,0,0,0,c25bc1c8) at atkbd_isa_intr+0x21 ithread_loop(c25a9b00,d1d51d48,0,20000,200381) at ithread_loop+0x1d1 fork_exit(c01ca360,c25a9b00,d1d51d48) at fork_exit+0xb3 fork_trampoline() at fork_trampoline+0x1a --- trap 0x1, eip = 0, esp = 0xd1d51d7c, ebp = 0 --- Regards, Trent. On Fri, Jan 03, 2003 at 09:12:34AM -0600, Trent Nelson wrote: > > I've experienced -current lock up in exactly the same way twice now; > once with 5.0-RC2, and just now, with sources from 30th December. > > The system in question is a Sharp PC-AR50 laptop. In both instances > the system was idle and I was editing a file in vim on ttyv0. Both > systems exhibited the following symptoms: > > 1. Able to switch terminals using alt-F1..F8, but that's it, I'm un- > able to type anything else (keyboard doesn't respond to letters, > numbers, but capslock and numlock still turn on lights). > 2. Responds to pings from other systems on the network. > 3. Cannot connect to the machine via ssh from other systems. The > connection is opened, according to ssh -vvv, but just hangs. > 4. Mouse cursor not responding to either USB mouse or touchpad. > 5. The screensaver (blank) still came on after ten minutes, and I > believe that pressing a key that wasn't previously working turned > it off. (I can't be 100% on that one, it was a pretty random bash > at the keyboard, as you do when you turn off the screen saver.) > 6. Trying out keys, pressing ctl-alt-break caused the following to be > printed on ttyv0: > sio4: detached > ad4: removed from config > ata2: detached > 7. Trying out more keys, I could page up and down ttyv0 with scroll > lock on. > 8. When switching terminals or paging up/down, there was a very, very > small latency between the keypress and the terminal switching or > the page going up or down. > 9. ctrl-alt-del did not work, had to hold down the power button for > five seconds (hard shutdown) to turn the laptop off. > > I have not noticed any other problems with my laptop, and successfu- > lly builtworld on it a number of times. > > Laptop has the following specs: PIII-850MHz, 20GB, DVD, 256MB RAM, > at the time of the last freeze, had a 3Com 56K PCMCIA (3CCM156) > modem in slot 0, and a CompactFlash PC Card adapter with a 256MB > flash card in it in slot 1 -- which wasn't mounted. (Actually, > the modem would have been present in the first freeze as well, but > I doubt the flash card was.) > > % uname -a > FreeBSD cherry.limekiln.vcisp.net 5.0-CURRENT FreeBSD 5.0-CURRENT #1: Mon Dec 30 04:33:27 GMT 2002 trent@cherry.limekiln.vcisp.net:/usr/obj/shared/work/BSD/FreeBSD/FreeBSD-CURRENT/src/sys/CHERRY i386 > > I've attached a copy of my kernel config. as well as the output from > boot -v (taken from the next boot after the crash). > > Regards, > > Trent. > > Copyright (c) 1992-2002 The FreeBSD Project. > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 > The Regents of the University of California. All rights reserved. > FreeBSD 5.0-CURRENT #1: Mon Dec 30 04:33:27 GMT 2002 > trent@cherry.limekiln.vcisp.net:/usr/obj/shared/work/BSD/FreeBSD/FreeBSD-CURRENT/src/sys/CHERRY > Preloaded elf kernel "/boot/kernel/kernel" at 0xc0485000. > Preloaded elf module "/boot/kernel/acpi.ko" at 0xc04850b4. > Calibrating clock(s) ... TSC clock: 846271143 Hz, i8254 clock: 1193112 Hz > CLK_USE_I8254_CALIBRATION not specified - using default frequency > Timecounter "i8254" frequency 1193182 Hz > CLK_USE_TSC_CALIBRATION not specified - using old calibration method > Timecounter "TSC" frequency 846324031 Hz > CPU: Pentium III/Pentium III Xeon/Celeron (846.32-MHz 686-class CPU) > Origin = "GenuineIntel" Id = 0x686 Stepping = 6 > Features=0x383f9ff > real memory = 268369920 (255 MB) > Physical memory chunk(s): > 0x00001000 - 0x0009efff, 647168 bytes (158 pages) > 0x004ac000 - 0x0ffe7fff, 263438336 bytes (64316 pages) > avail memory = 255811584 (243 MB) > bios32: Found BIOS32 Service Directory header at 0xc00f71d0 > bios32: Entry = 0xfd8a0 (c00fd8a0) Rev = 0 Len = 1 > pcibios: PCI BIOS entry at 0xfd8a0+0x12f > pnpbios: Found PnP BIOS data at 0xc00f7200 > pnpbios: Entry = f0000:abbe Rev = 1.0 > Other BIOS signatures found: > Initializing GEOMetry subsystem > null: > random: > mem: > Pentium Pro MTRR support enabled > npx0: on motherboard > npx0: INT 16 interface > acpi0: on motherboard > ACPI-0625: *** Info: GPE Block0 defined as GPE0 to GPE15 > ACPI-1287: *** Error: Method execution failed, AE_NOT_EXIST > ACPI-1287: *** Error: Method execution failed, AE_NOT_EXIST > ACPI-1287: *** Error: Method execution failed, AE_NOT_EXIST > pci_open(1): mode 1 addr port (0x0cf8) is 0x8000384c > pci_open(1a): mode1res=0x80000000 (0x80000000) > pci_cfgcheck: device 0 [class=060000] [hdr=00] is there (id=71908086) > Using $PIR table, 7 entries at 0xc00fdf50 > PCI-Only Interrupts: none > Location Bus Device Pin Link IRQs > embedded 1 0 A 0x60 3 4 5 6 7 9 10 11 12 14 15 > embedded 1 0 B 0x61 3 4 5 6 7 9 10 11 12 14 15 > embedded 1 0 C 0x62 3 4 5 6 7 9 10 11 12 14 15 > embedded 1 0 D 0x63 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 1 A 0x61 3 4 5 6 7 9 10 11 12 14 15 > embedded 1 0 A 0x61 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 7 A 0x60 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 7 B 0x61 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 7 C 0x62 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 7 D 0x63 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 12 A 0x60 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 14 A 0x62 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 11 A 0x60 3 4 5 6 7 9 10 11 12 14 15 > embedded 0 11 B 0x61 3 4 5 6 7 9 10 11 12 14 15 > acpi0: power button is handled as a fixed feature programming model. > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > ACPI timer looks BAD min = 2, max = 6, width = 5 > Timecounter "ACPI-safe" frequency 3579545 Hz > acpi_timer0: <24-bit timer at 3.579545MHz> port 0x8008-0x800b on acpi0 > acpi_cpu0: on acpi0 > acpi_tz0: on acpi0 > pcib0: port 0xcf8-0xcff on acpi0 > ---- initial configuration ------------------------ > \\_SB_.PCI0.ISA_.LNKD irq 5: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.7.3 > \\_SB_.PCI0.ISA_.LNKC irq 10: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.14.0 > \\_SB_.PCI0.ISA_.LNKA irq 11: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.12.0 > \\_SB_.PCI0.ISA_.LNKA irq 11: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.11.0 > \\_SB_.PCI0.ISA_.LNKB irq 9: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.11.1 > ---- before setting priority for links ------------ > ---- before fixup boot-disabled links ------------- > ---- after fixup boot-disabled links -------------- > ---- arbitrated configuration --------------------- > \\_SB_.PCI0.ISA_.LNKD irq 5: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.7.3 > \\_SB_.PCI0.ISA_.LNKC irq 10: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.14.0 > \\_SB_.PCI0.ISA_.LNKA irq 11: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.12.0 > \\_SB_.PCI0.ISA_.LNKA irq 11: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.11.0 > \\_SB_.PCI0.ISA_.LNKB irq 9: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 0.11.1 > pci0: on pcib0 > pci0: physical bus=0 > map[10]: type 3, range 32, base f8000000, size 26, enabled > found-> vendor=0x8086, dev=0x7190, revid=0x03 > bus=0, slot=0, func=0 > class=06-00-00, hdrtype=0x00, mfdev=0 > cmdreg=0x0106, statreg=0x2210, cachelnsz=0 (dwords) > lattimer=0x40 (1920 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns) > found-> vendor=0x8086, dev=0x7191, revid=0x03 > bus=0, slot=1, func=0 > class=06-04-00, hdrtype=0x01, mfdev=0 > cmdreg=0x001f, statreg=0x0220, cachelnsz=0 (dwords) > lattimer=0x80 (3840 ns), mingnt=0x8c (35000 ns), maxlat=0x00 (0 ns) > found-> vendor=0x8086, dev=0x7110, revid=0x02 > bus=0, slot=7, func=0 > class=06-80-00, hdrtype=0x00, mfdev=1 > cmdreg=0x000f, statreg=0x0280, cachelnsz=0 (dwords) > lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns) > map[20]: type 4, range 32, base 0000fcf0, size 4, enabled > found-> vendor=0x8086, dev=0x7111, revid=0x01 > bus=0, slot=7, func=1 > class=01-01-80, hdrtype=0x00, mfdev=0 > cmdreg=0x0005, statreg=0x0280, cachelnsz=0 (dwords) > lattimer=0x40 (1920 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns) > map[20]: type 4, range 32, base 0000fcc0, size 5, port disabled > found-> vendor=0x8086, dev=0x7112, revid=0x01 > bus=0, slot=7, func=2 > class=0c-03-00, hdrtype=0x00, mfdev=0 > cmdreg=0x0000, statreg=0x0280, cachelnsz=0 (dwords) > lattimer=0x40 (1920 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns) > intpin=d, irq=5 > map[90]: type 4, range 32, base 00002180, size 4, enabled > found-> vendor=0x8086, dev=0x7113, revid=0x03 > bus=0, slot=7, func=3 > class=06-80-00, hdrtype=0x00, mfdev=0 > cmdreg=0x0003, statreg=0x0280, cachelnsz=0 (dwords) > lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns) > map[10]: type 4, range 32, base 0000f800, size 8, port disabled > map[14]: type 1, range 32, base fedffc00, size 10, memory disabled > found-> vendor=0x1113, dev=0x1216, revid=0x11 > bus=0, slot=11, func=0 > class=02-00-00, hdrtype=0x00, mfdev=0 > cmdreg=0x0010, statreg=0x0290, cachelnsz=8 (dwords) > lattimer=0x40 (1920 ns), mingnt=0xff (63750 ns), maxlat=0xff (63750 ns) > intpin=a, irq=11 > powerspec 2 supports D0 D1 D2 D3 current D0 > map[10]: type 1, range 32, base fedfe000, size 12, memory disabled > found-> vendor=0x104c, dev=0xac42, revid=0x00 > bus=0, slot=12, func=0 > class=06-07-00, hdrtype=0x02, mfdev=1 > cmdreg=0x0000, statreg=0x0210, cachelnsz=8 (dwords) > lattimer=0x40 (1920 ns), mingnt=0xc0 (48000 ns), maxlat=0x03 (750 ns) > intpin=a, irq=11 > powerspec 2 supports D0 D1 D2 D3 current D0 > map[10]: type 1, range 32, base fedfd000, size 12, memory disabled > found-> vendor=0x104c, dev=0xac42, revid=0x00 > bus=0, slot=12, func=1 > class=06-07-00, hdrtype=0x02, mfdev=1 > cmdreg=0x0000, statreg=0x0210, cachelnsz=8 (dwords) > lattimer=0x40 (1920 ns), mingnt=0xc0 (48000 ns), maxlat=0x03 (750 ns) > intpin=a, irq=11 > powerspec 2 supports D0 D1 D2 D3 current D0 > map[10]: type 1, range 32, base fedff000, size 11, memory disabled > map[14]: type 1, range 32, base fedf8000, size 14, enabled > found-> vendor=0x104c, dev=0x8027, revid=0x00 > bus=0, slot=12, func=2 > class=0c-00-10, hdrtype=0x00, mfdev=1 > cmdreg=0x0010, statreg=0x0210, cachelnsz=8 (dwords) > lattimer=0x40 (1920 ns), mingnt=0x02 (500 ns), maxlat=0x04 (1000 ns) > intpin=a, irq=11 > powerspec 2 supports D0 D2 D3 current D0 > map[10]: type 4, range 32, base 0000f400, size 8, enabled > found-> vendor=0x125d, dev=0x1988, revid=0x12 > bus=0, slot=14, func=0 > class=04-01-00, hdrtype=0x00, mfdev=1 > cmdreg=0x0005, statreg=0x0290, cachelnsz=0 (dwords) > lattimer=0x40 (1920 ns), mingnt=0x02 (500 ns), maxlat=0x18 (6000 ns) > intpin=a, irq=10 > powerspec 2 supports D0 D1 D2 D3 current D0 > map[10]: type 4, range 32, base 0000f000, size 8, enabled > found-> vendor=0x125d, dev=0x1989, revid=0x12 > bus=0, slot=14, func=1 > class=07-80-00, hdrtype=0x00, mfdev=1 > cmdreg=0x0001, statreg=0x0290, cachelnsz=0 (dwords) > lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns) > intpin=a, irq=10 > powerspec 2 supports D0 D1 D2 D3 current D0 > agp0: mem 0xf8000000-0xfbffffff at device 0.0 on pci0 > agp0: allocating GATT for aperture of size 64M > pcib1: at device 1.0 on pci0 > pcib1: secondary bus 1 > pcib1: subordinate bus 1 > pcib1: I/O decode 0xe000-0xefff > pcib1: memory decode 0xfd000000-0xfecfffff > pcib1: prefetched decode 0xfff00000-0xfffff > ---- initial configuration ------------------------ > \\_SB_.PCI0.ISA_.LNKB irq 9: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 1.0.0 > ---- before setting priority for links ------------ > ---- before fixup boot-disabled links ------------- > ---- after fixup boot-disabled links -------------- > ---- arbitrated configuration --------------------- > \\_SB_.PCI0.ISA_.LNKB irq 9: [ 3 4 5 6 7 9 10 11 14 15] low,level,sharable 1.0.0 > pci1: on pcib1 > pci1: physical bus=1 > map[10]: type 1, range 32, base fd000000, size 24, enabled > map[14]: type 4, range 32, base 0000e800, size 8, enabled > map[18]: type 1, range 32, base fecfe000, size 12, enabled > found-> vendor=0x1002, dev=0x4c4d, revid=0x64 > bus=1, slot=0, func=0 > class=03-00-00, hdrtype=0x00, mfdev=0 > cmdreg=0x0087, statreg=0x0290, cachelnsz=8 (dwords) > lattimer=0x42 (1980 ns), mingnt=0x08 (2000 ns), maxlat=0x00 (0 ns) > intpin=a, irq=9 > powerspec 1 supports D0 D1 D2 D3 current D0 > pci1: at device 0.0 (no driver attached) > PCI-ISA bridge with incorrect subclass 0x80 > PCI-ISA bridge with incorrect subclass 0x80 > isab0: at device 7.0 on pci0 > isa0: on isab0 > atapci0: port 0xfcf0-0xfcff at device 7.1 on pci0 > ata0: iobase=0x01f0 altiobase=0x03f6 bmaddr=0xfcf0 > ata0: mask=03 ostat0=50 ostat2=00 > ata0-master: ATAPI 00 00 > ata0-slave: ATAPI 00 00 > ata0: mask=03 stat0=50 stat1=00 > ata0-master: ATA 01 a5 > ata0: devices=01 > ata0: at 0x1f0 irq 14 on atapci0 > ata1: iobase=0x0170 altiobase=0x0376 bmaddr=0xfcf8 > ata1: mask=03 ostat0=50 ostat2=01 > ata1-master: ATAPI 14 eb > ata1-slave: ATAPI 14 eb > ata1: mask=03 stat0=00 stat1=01 > ata1: devices=0c > ata1: at 0x170 irq 15 on atapci0 > uhci0: port 0xfcc0-0xfcdf irq 5 at device 7.2 on pci0 > usb0: on uhci0 > usb0: USB revision 1.0 > uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 > uhub0: 2 ports with 2 removable, self powered > ums0: Microsoft Microsoft Wheel Mouse Optical\M-., rev 1.10/1.21, addr 2, iclass 3/1 > ums0: 3 buttons and Z dir. > pci0: at device 7.3 (no driver attached) > dc0: port 0xf800-0xf8ff mem 0xfedffc00-0xfedfffff irq 11 at device 11.0 on pci0 > dc0: Ethernet address: 00:d0:59:29:2e:f0 > miibus0: on dc0 > ukphy0: on miibus0 > ukphy0: OUI 0x000895, model 0x0001, rev. 0 > ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto > dc0: bpf attached > cbb0: mem 0xfedfe000-0xfedfefff irq 11 at device 12.0 on pci0 > cardbus0: on cbb0 > pccard0: <16-bit PCCard bus> on cbb0 > cbb1: mem 0xfedfd000-0xfedfdfff irq 11 at device 12.1 on pci0 > cardbus1: on cbb1 > pccard1: <16-bit PCCard bus> on cbb1 > pci0: at device 12.2 (no driver attached) > pci0: at device 14.0 (no driver attached) > pci0: at device 14.1 (no driver attached) > acpi_acad0: on acpi0 > acpi_cmbat0: on acpi0 > acpi_cmbat1: on acpi0 > acpi_lid0: on acpi0 > ACPI-1287: *** Error: Method execution failed, AE_NOT_EXIST > acpi_button0: on acpi0 > unknown: not probed (disabled) > unknown: not probed (disabled) > ppc0: using extended I/O port range > ppc0: ECP SPP SPP > ppc0 port 0x778-0x77f,0x378-0x37f irq 7 drq 0 on acpi0 > ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode > ppc0: FIFO with 16/16/8 bytes threshold > plip0: on ppbus0 > lp0: bpf attached > lpt0: on ppbus0 > lpt0: Interrupt-driven port > ppi0: on ppbus0 > unknown: not probed (disabled) > sio0: irq maps: 0x1 0x11 0x1 0x1 > sio0 port 0x3f8-0x3ff irq 4 on acpi0 > sio0: type 16550A > fdc0: port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0 > fdc0: FIFO enabled, 8 bytes threshold > fd0: <1440-KB 3.5" drive> on fdc0 drive 0 > atkbdc0: port 0x64,0x60 irq 1 on acpi0 > atkbd0: flags 0x1 irq 1 on atkbdc0 > atkbd: the current kbd controller command byte 0047 > atkbd: keyboard ID 0x41ab (2) > kbd0 at atkbd0 > kbd0: atkbd0, AT 101/102 (2), config:0x1, flags:0x3d0000 > psm0: unable to allocate IRQ > psmcpnp0 irq 12 on acpi0 > psm0: current command byte:0047 > psm0: irq 12 on atkbdc0 > psm0: model Generic PS/2 mouse, device ID 0-00, 2 buttons > psm0: config:00000000, flags:00000000, packet size:3 > psm0: syncmask:c0, syncbits:00 > acpi_ec0: port 0x66,0x62 on acpi0 > unknown: not probed (disabled) > unknown: not probed (disabled) > unknown: not probed (disabled) > unknown: not probed (disabled) > unknown: not probed (disabled) > ata: ata0 already exists; skipping it > ata: ata1 already exists; skipping it > atkbdc: atkbdc0 already exists; skipping it > fdc: fdc0 already exists; skipping it > ppc: ppc0 already exists; skipping it > sio: sio0 already exists; skipping it > Trying Read_Port at 203 > Trying Read_Port at 243 > Trying Read_Port at 283 > Trying Read_Port at 2c3 > Trying Read_Port at 303 > Trying Read_Port at 343 > Trying Read_Port at 383 > Trying Read_Port at 3c3 > sc: sc0 already exists; skipping it > vga: vga0 already exists; skipping it > isa_probe_children: disabling PnP devices > isa_probe_children: probing non-PnP devices > orm0: