The following reply was made to PR kern/36188; it has been noted by GNATS.

From: fukumoto@imasy.or.jp
To: gnats-bugs@NetBSD.org
Cc: kern-bug-people@netbsd.org, gnats-admin@netbsd.org,
	netbsd-bugs@netbsd.org
Subject: Re: kern/36188: pkgsrc/misc/screen exits with "select: Invalid argument" when used with XEN2_DOM0
Date: Sun, 22 Apr 2007 21:14:42 +0900

 Matthias Scheler wrote:
 >>  That with an unchanged "XEN2_DOM0" kernel configuration? Do did you
 >>  perhaps comment out "COMPAT_BSDPTY"?
 >>  
 
 It was XEN2_DOM0 with following changes:
 I've changed GENERIC.local (which is included from XEN2_DOM0) to add a
 few options: BRIDGE_IPF, POWERNOW_K8, and it(4) device.
 it(4) device is a modified version (pr/35796)
 
 Now I tried with stock XEN2_DOM0 kernel and it has same symptom.
 (Though it's Feb 11 2007 version.  I couldn't find a newer one on
 ftp.netbsd.org.)
 
 I tried XEN3_DOM0 with xen-3.0.3 and it does not have the problem.
 
 Attached is dmesg output from the XEN2_DOM0 kernel (stock one).  Xen
 kernel is xen-2.0.7 by pkgsrc xenkernel20, although I copied it by
 hand as /xen-2 to make it coexist with xen-3 kernel.  Somehow I can't
 obtain xen's dmesg.  ("xm dmesg" returns "server internal error".)  In
 fact, I experienced this "select: Invalid argument" while I was
 tracking the reason why xm dmesg is returning error.
 
 
 						FUKUMOTO Atsushi
 						fukumoto@imasy.or.jp
 
 
 Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
     The NetBSD Foundation, Inc.  All rights reserved.
 Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.
 
 NetBSD 4.0_BETA2 (XEN2_DOM0) #0: Sun Feb 11 06:18:10 UTC 2007
 	builds@b0.netbsd.org:/home/builds/ab/netbsd-4/i386/200702090000Z-obj/home/builds/ab/netbsd-4/src/sys/arch/i386/compile/XEN2_DOM0
 total memory = 65536 KB
 avail memory = 55084 KB
 BIOS32 rev. 0 found at 0xf1fc0
 mainbus0 (root)
 cpu0 at mainbus0: (uniprocessor)
 cpu0: AMD Unknown K7 (Athlon) (686-class), 2204.62 MHz, id 0x40fb2
 cpu0: features 178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
 cpu0: features 178bfbff<PGE,MCA,CMOV,PAT,PSE36,MPC,MMX>
 cpu0: features 178bfbff<FXSR,SSE,SSE2,HTT>
 hypervisor0 at mainbus0
 debug virtual interrupt using event channel 1
 misdirect virtual interrupt using event channel 0
 Domain controller: using event channel 2
 xencons0 at hypervisor0: Xen Virtual Console Driver
 npx0 at hypervisor0: using exception 16
 PCI_PROBE_ROOT_BUSES: 0x11 0x0 0x0 0x0 0x0 0x0 0x0 0x0 
 pci0 at hypervisor0 bus 0
 pci0: i/o space, memory space enabled
 NVIDIA product 0x02f0 (RAM memory, revision 0xa2) at pci0 dev 0 function 0 not configured
 NVIDIA product 0x02fa (RAM memory, revision 0xa2) at pci0 dev 0 function 1 not configured
 NVIDIA product 0x02fe (RAM memory, revision 0xa2) at pci0 dev 0 function 2 not configured
 NVIDIA product 0x02f8 (RAM memory, revision 0xa2) at pci0 dev 0 function 3 not configured
 NVIDIA product 0x02f9 (RAM memory, revision 0xa2) at pci0 dev 0 function 4 not configured
 NVIDIA product 0x02ff (RAM memory, revision 0xa2) at pci0 dev 0 function 5 not configured
 NVIDIA product 0x027f (RAM memory, revision 0xa2) at pci0 dev 0 function 6 not configured
 NVIDIA product 0x027e (RAM memory, revision 0xa2) at pci0 dev 0 function 7 not configured
 ppb0 at pci0 dev 2 function 0: NVIDIA product 0x02fc (rev. 0xa1)
 pci at ppb0 bus 1 not configured
 ppb1 at pci0 dev 3 function 0: NVIDIA product 0x02fd (rev. 0xa1)
 pci at ppb1 bus 2 not configured
 ppb2 at pci0 dev 4 function 0: NVIDIA product 0x02fb (rev. 0xa1)
 pci at ppb2 bus 3 not configured
 vga0 at pci0 dev 5 function 0: NVIDIA product 0x0240 (rev. 0xa2)
 vga0: WARNING: ignoring 64-bit BAR @ 0x14
 vga0: WARNING: ignoring 64-bit BAR @ 0x1c
 wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation)
 wsmux1: connecting to wsdisplay0
 wsdisplay0: screen 1-3 added (80x25, vt100 emulation)
 NVIDIA product 0x0270 (RAM memory, revision 0xa2) at pci0 dev 9 function 0 not configured
 pcib0 at pci0 dev 10 function 0
 pcib0: NVIDIA nForce430 PCI-ISA bridge (rev. 0xa3)
 NVIDIA nForce430 SMBus Controller (SMBus serial bus, revision 0xa3) at pci0 dev 10 function 1 not configured
 NVIDIA product 0x0272 (RAM memory, revision 0xa3) at pci0 dev 10 function 2 not configured
 ohci0 at pci0 dev 11 function 0: NVIDIA nForce430 USB Controller (rev. 0xa3)
 ohci0: interrupting at irq 5, event channel 4
 ohci0: OHCI version 1.0, legacy support
 usb0 at ohci0: USB revision 1.0
 uhub0 at usb0
 uhub0: NVIDIA OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub0: 8 ports with 8 removable, self powered
 ehci0 at pci0 dev 11 function 1: NVIDIA nForce430 USB2 Controller (rev. 0xa3)
 ehci0: interrupting at irq 5, event channel 4
 ehci0: BIOS has given up ownership
 ehci0: EHCI version 1.0
 ehci0: companion controller, 8 ports each: ohci0
 usb1 at ehci0: USB revision 2.0
 uhub1 at usb1
 uhub1: NVIDIA EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
 uhub1: 8 ports with 8 removable, self powered
 viaide0 at pci0 dev 13 function 0
 viaide0: NVIDIA nForce430 IDE Controller (rev. 0xa1)
 viaide0: bus-master DMA support present
 viaide0: primary channel configured to compatibility mode
 viaide0: primary channel using event channel 5 for irq 14
 atabus0 at viaide0 channel 0
 viaide0: secondary channel configured to compatibility mode
 viaide0: secondary channel using event channel 6 for irq 15
 atabus1 at viaide0 channel 1
 viaide1 at pci0 dev 14 function 0
 viaide1: NVIDIA nForce430 Serial ATA Controller (rev. 0xa1)
 viaide1: bus-master DMA support present
 viaide1: primary channel wired to native-PCI mode
 viaide1: using irq 5, event channel 4 for native-PCI interrupt
 atabus2 at viaide1 channel 0
 viaide1: secondary channel wired to native-PCI mode
 atabus3 at viaide1 channel 1
 viaide2 at pci0 dev 15 function 0
 viaide2: NVIDIA nForce430 Serial ATA Controller (rev. 0xa1)
 viaide2: bus-master DMA support present
 viaide2: primary channel wired to native-PCI mode
 viaide2: using irq 5, event channel 4 for native-PCI interrupt
 atabus4 at viaide2 channel 0
 viaide2: secondary channel wired to native-PCI mode
 atabus5 at viaide2 channel 1
 ppb3 at pci0 dev 16 function 0: NVIDIA product 0x026f (rev. 0xa2)
 pci at ppb3 bus 4 not configured
 NVIDIA nForce430 High Definition Audio Controller (multimedia subclass 0x03, revision 0xa2) at pci0 dev 16 function 1 not configured
 nfe0 at pci0 dev 20 function 0: NVIDIA nForce430 Gigabit Ethernet Controller (rev. 0xa3)
 nfe0: interrupting at irq 11, event channel 7
 nfe0: Ethernet address 00:0e:a6:f9:aa:47
 ukphy0 at nfe0 phy 1: Generic IEEE 802.3u media interface
 ukphy0: OUI 0x000ac2, model 0x0021, rev. 1
 ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
 pchb0 at pci0 dev 24 function 0
 pchb0: Advanced Micro Devices AMD64 HyperTransport configuration (rev. 0x00)
 pchb1 at pci0 dev 24 function 1
 pchb1: Advanced Micro Devices AMD64 Address Map configuration (rev. 0x00)
 pchb2 at pci0 dev 24 function 2
 pchb2: Advanced Micro Devices AMD64 DRAM configuration (rev. 0x00)
 pchb3 at pci0 dev 24 function 3
 pchb3: Advanced Micro Devices AMD64 Miscellaneous configuration (rev. 0x00)
 isa0 at pcib0
 lpt0 at isa0 port 0x378-0x37b irq 7
 com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
 pckbc0 at isa0 port 0x60-0x64
 pckbd0 at pckbc0 (kbd slot)
 pckbc0: using irq 1 for kbd slot
 wskbd0 at pckbd0: console keyboard, using wsdisplay0
 pmsprobe: reset error 5
 pci1 at hypervisor0 bus 4
 pci1: i/o space, memory space enabled
 fwohci0 at pci1 dev 5 function 0: Texas Instruments TSB43AA22/A IEEE 1394 Host Controller (rev. 0x00)
 fwohci0: interrupting at irq 11, event channel 7
 fwohci0: OHCI version 1.10 (ROM=1)
 fwohci0: No. of Isochronous channels is 4.
 fwohci0: EUI64 00:11:d8:00:01:0d:5b:3a
 fwohci0: Phy 1394a available S400, 2 ports.
 fwohci0: Link S400, max_rec 2048 bytes.
 ieee1394if0 at fwohci0: IEEE1394 bus
 fwip0 at ieee1394if0: IP over IEEE1394
 fwohci0: Initiate bus reset
 ne0 at pci1 dev 9 function 0: Realtek 8029 Ethernet
 ne0: Ethernet address 52:54:00:dc:d9:3d
 ne0: 10base2, 10baseT, 10baseT-FDX, auto, default [0x03 0x30] auto
 ne0: interrupting at irq 11, event channel 7
 fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
 ieee1394if0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
 ieee1394if0: bus manager 0 (me)
 Xen clock: using event channel 11
 crypto: assign driver 0, flags 2
 crypto: driver 0 registers alg 1 flags 0 maxoplen 0
 crypto: driver 0 registers alg 2 flags 0 maxoplen 0
 crypto: driver 0 registers alg 3 flags 0 maxoplen 0
 crypto: driver 0 registers alg 4 flags 0 maxoplen 0
 crypto: driver 0 registers alg 5 flags 0 maxoplen 0
 crypto: driver 0 registers alg 17 flags 0 maxoplen 0
 crypto: driver 0 registers alg 6 flags 0 maxoplen 0
 crypto: driver 0 registers alg 7 flags 0 maxoplen 0
 crypto: driver 0 registers alg 15 flags 0 maxoplen 0
 crypto: driver 0 registers alg 8 flags 0 maxoplen 0
 crypto: driver 0 registers alg 16 flags 0 maxoplen 0
 crypto: driver 0 registers alg 9 flags 0 maxoplen 0
 crypto: driver 0 registers alg 10 flags 0 maxoplen 0
 crypto: driver 0 registers alg 13 flags 0 maxoplen 0
 crypto: driver 0 registers alg 14 flags 0 maxoplen 0
 crypto: driver 0 registers alg 11 flags 0 maxoplen 0
 crypto: driver 0 registers alg 18 flags 0 maxoplen 0
 raidattach: Asked for 8 units
 Kernelized RAIDframe activated
 wd0 at atabus0 drive 0: <Maxtor 6Y080L0>
 wd0: drive supports 16-sector PIO transfers, LBA addressing
 wd0: 78167 MB, 158816 cyl, 16 head, 63 sec, 512 bytes/sect x 160086528 sectors
 wd0: 32-bit data port
 wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
 wd0(viaide0:0:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
 Searching for RAID components...
 boot device: wd0
 root on wd0a dumps on wd0b
 mountroot: trying lfs...
 mountroot: trying ffs...
 root file system type: ffs
 init: copying out path `/sbin/init' 11