Reproducable but intermittent: CVS fails to check out large files on amd64

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Reproducable but intermittent: CVS fails to check out large files on amd64

chohag
>Synopsis: CVS fails to check out large files on amd64, sometimes
>Category: user amd64
>Environment:
        System      : OpenBSD 5.8
        Details     : OpenBSD 5.8 (GENERIC.MP) #1236: Sun Aug 16 02:31:04 MDT 2015
                         [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP

        Architecture: OpenBSD.amd64
        Machine     : amd64
>Description:
        When checking out large files using a local CVS server, the
        final 'ok' line is not printed about 2/3 of the time and the
        checkout subsequently fails.

        I heard through the grapevine (aka. #openbsd on freenode) that
        this is a known problem affecting amd64. Hopefully some
        diagnosis can shed some light on it. Personally I don't relish
        the thought of digging into cvs' source.
>How-To-Repeat:
        (To forestall comments on the wisdom of doing things like this
        as root, this whole process was performed on a VM created
        specifically for the purpose. Security considerations are moot.)

        Given a cvsync of the openbsd tree at /root/openbsd/cvs:
        # cat input
        Root /root/openbsd/cvs
        Valid-responses ok error Valid-requests Mode M Mbinary E Checked-in Created Updated Merged Removed
        valid-requests
       
        UseUnchanged
       
        Argument -N
        Argument -P
        Argument -kk
        Argument -r
        Argument 1.27
        Argument --
        Argument xenocara/xserver/ChangeLog
        Directory .
        /root/openbsd/cvs
        co
        # grep . input | cvs server | tail -n1
        ok
        < OR >
            3297. Xterm patch #119 (#3335, Thomas Dickey).
        #

        Running (a variant on) the above 1000 times revealed the following:
        # sed 's/^[0-9]*: //' < cumul | sort | uniq -c
         696     3297. Xterm patch #119 (#3335, Thomas Dickey).
         304 ok

        So it does appear to be just the final 'ok' which is missing
        (or the 696 bad runs would be a mis-match of different responses).

        nb. I don't know which parts of the input are necessary but it
        doesn't look like it would matter anyway. It's extracted from
        what git-cvsimport sends to the cvs server.

>Fix:
        The best I've got is to keep retrying until the last line is
        'ok'. This sucks for obvious reasons.


dmesg:
OpenBSD 5.8 (GENERIC.MP) #1236: Sun Aug 16 02:31:04 MDT 2015
    [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 1056956416 (1007MB)
avail mem = 1021083648 (973MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xfd9c0 (10 entries)
bios0: vendor Bochs version "Bochs" date 01/01/2007
bios0: Bochs Bochs
acpi0 at bios0: rev 0
acpi0: sleep states S3 S4 S5
acpi0: tables DSDT FACP SSDT APIC HPET SSDT
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: QEMU Virtual CPU version 1.1.2, 3503.87 MHz
cpu0: FPU,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,CX16,POPCNT,HV,NXE,LONG,LAHF
cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache
cpu0: ITLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu0: DTLB 255 4KB entries direct-mapped, 255 4MB entries direct-mapped
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 999MHz
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 11, 24 pins
ioapic0: misconfigured as apic 0, remapped to apid 1
acpihpet0 at acpi0: 100000000 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpicpu0 at acpi0: C1(@1 halt!)
pvbus0 at mainbus0: KVM
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02
pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00
pciide0 at pci0 dev 1 function 1 "Intel 82371SB IDE" rev 0x00: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
pciide0: channel 0 disabled (no drives)
atapiscsi0 at pciide0 channel 1 drive 0
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 1.1.> ATAPI 5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2
uhci0 at pci0 dev 1 function 2 "Intel 82371SB USB" rev 0x01: apic 1 int 11
piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: apic 1 int 10
iic0 at piixpm0
iic0: addr 0x18 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words 00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x1a 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words 00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x29 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words 00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x2b 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words 00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x4c 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words 00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
iic0: addr 0x4e 00=00 01=00 02=00 03=00 04=00 05=00 06=00 07=00 08=00 words 00=0000 01=0000 02=0000 03=0000 04=0000 05=0000 06=0000 07=0000
vga1 at pci0 dev 2 function 0 "Cirrus Logic CL-GD5446" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
virtio0 at pci0 dev 3 function 0 "Qumranet Virtio Network" rev 0x00: Virtio Network Device
vio0 at virtio0: address 52:54:00:12:34:56
virtio0: apic 1 int 11
virtio1 at pci0 dev 4 function 0 "Qumranet Virtio Storage" rev 0x00: Virtio Block Device
vioblk0 at virtio1
scsibus2 at vioblk0: 2 targets
sd0 at scsibus2 targ 0 lun 0: <VirtIO, Block Device, > SCSI3 0/direct fixed
sd0: 81920MB, 512 bytes/sector, 167772160 sectors
virtio1: apic 1 int 11
isa0 at pcib0
isadma0 at isa0
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
fd1 at fdc0 drive 1: density unknown
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
usb0 at uhci0: USB revision 1.0
uhub0 at usb0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
nvram: invalid checksum
uhidev0 at uhub0 port 1 configuration 1 interface 0 "QEMU 1.1.2 QEMU USB Tablet" rev 1.00/0.00 addr 2
uhidev0: iclass 3/0
ums0 at uhidev0: 3 buttons, Z dir
wsmouse1 at ums0 mux 0
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on sd0a (b8c1fca5e0a3c4bc.a) swap on sd0b dump on sd0b
WARNING: / was not properly unmounted
clock: unknown CMOS layout

usbdevs:
Controller /dev/usb0:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x8086), rev 1.00
 port 1 addr 2: full speed, power 100 mA, config 1, QEMU USB Tablet(0x0001), QEMU 1.1.2(0x0627), rev 0.00, iSerialNumber 42
 port 2 powered

pcidump:
Domain /dev/pci0:
 0:0:0: Intel 82441FX
        0x0000: Vendor ID: 8086 Product ID: 1237
        0x0004: Command: 0003 Status: 0000
        0x0008: Class: 06 Subclass: 00 Interface: 00 Revision: 02
        0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
        0x0010: BAR empty (00000000)
        0x0014: BAR empty (00000000)
        0x0018: BAR empty (00000000)
        0x001c: BAR empty (00000000)
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
        0x0000: 12378086 00000003 06000002 00000000
        0x0010: 00000000 00000000 00000000 00000000
        0x0020: 00000000 00000000 00000000 11001af4
        0x0030: 00000000 00000000 00000000 00000000
        0x0040: 00000000 00000000 00000000 00000000
        0x0050: 00000000 80000000 11111000 33333333
        0x0060: 00000000 00000000 00000000 00000000
        0x0070: 00020000 00000000 00000000 00000000
        0x0080: 00000000 00000000 00000000 00000000
        0x0090: 00000000 00000000 00000000 00000000
        0x00a0: 00000000 00000000 00000000 00000000
        0x00b0: 00000000 00000000 00000000 00000000
        0x00c0: 00000000 00000000 00000000 00000000
        0x00d0: 00000000 00000000 00000000 00000000
        0x00e0: 00000000 00000000 00000000 00000000
        0x00f0: 00000000 00000000 00000000 00000000
 0:1:0: Intel 82371SB ISA
        0x0000: Vendor ID: 8086 Product ID: 7000
        0x0004: Command: 0003 Status: 0200
        0x0008: Class: 06 Subclass: 01 Interface: 00 Revision: 00
        0x000c: BIST: 00 Header Type: 80 Latency Timer: 00 Cache Line Size: 00
        0x0010: BAR empty (00000000)
        0x0014: BAR empty (00000000)
        0x0018: BAR empty (00000000)
        0x001c: BAR empty (00000000)
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
        0x0000: 70008086 02000003 06010000 00800000
        0x0010: 00000000 00000000 00000000 00000000
        0x0020: 00000000 00000000 00000000 11001af4
        0x0030: 00000000 00000000 00000000 00000000
        0x0040: 00000000 00000000 00000000 0003004d
        0x0050: 00000000 00000000 00000000 00000000
        0x0060: 0b0b0a0a 00000000 00000200 00000000
        0x0070: 00000080 0c0c0000 00000002 00000000
        0x0080: 00000000 00000000 00000000 00000000
        0x0090: 00000000 00000000 00000000 00000000
        0x00a0: 00000008 00000000 0000000f 00000000
        0x00b0: 00000000 00000000 00000000 00000000
        0x00c0: 00000000 00000000 00000000 00000000
        0x00d0: 00000000 00000000 00000000 00000000
        0x00e0: 00000000 00000000 00000000 00000000
        0x00f0: 00000000 00000000 00000000 00000000
 0:1:1: Intel 82371SB IDE
        0x0000: Vendor ID: 8086 Product ID: 7010
        0x0004: Command: 0007 Status: 0280
        0x0008: Class: 01 Subclass: 01 Interface: 80 Revision: 00
        0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
        0x0010: BAR empty (00000000)
        0x0014: BAR empty (00000000)
        0x0018: BAR empty (00000000)
        0x001c: BAR empty (00000000)
        0x0020: BAR io addr: 0x0000c080/0x0010
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
        0x0000: 70108086 02800007 01018000 00000000
        0x0010: 00000000 00000000 00000000 00000000
        0x0020: 0000c081 00000000 00000000 11001af4
        0x0030: 00000000 00000000 00000000 00000000
        0x0040: a3070000 00000000 00000000 00000000
        0x0050: 00000000 00000000 00000000 00000000
        0x0060: 00000000 00000000 00000000 00000000
        0x0070: 00000000 00000000 00000000 00000000
        0x0080: 00000000 00000000 00000000 00000000
        0x0090: 00000000 00000000 00000000 00000000
        0x00a0: 00000000 00000000 00000000 00000000
        0x00b0: 00000000 00000000 00000000 00000000
        0x00c0: 00000000 00000000 00000000 00000000
        0x00d0: 00000000 00000000 00000000 00000000
        0x00e0: 00000000 00000000 00000000 00000000
        0x00f0: 00000000 00000000 00000000 00000000
 0:1:2: Intel 82371SB USB
        0x0000: Vendor ID: 8086 Product ID: 7020
        0x0004: Command: 0007 Status: 0000
        0x0008: Class: 0c Subclass: 03 Interface: 00 Revision: 01
        0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
        0x0010: BAR empty (00000000)
        0x0014: BAR empty (00000000)
        0x0018: BAR empty (00000000)
        0x001c: BAR empty (00000000)
        0x0020: BAR io addr: 0x0000c040/0x0020
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 04 Line: 0b Min Gnt: 00 Max Lat: 00
        0x0000: 70208086 00000007 0c030001 00000000
        0x0010: 00000000 00000000 00000000 00000000
        0x0020: 0000c041 00000000 00000000 11001af4
        0x0030: 00000000 00000000 00000000 0000040b
        0x0040: 00000000 00000000 00000000 00000000
        0x0050: 00000000 00000000 00000000 00000000
        0x0060: 00000010 00000000 00010000 00000000
        0x0070: 00000000 00000000 00000000 00000000
        0x0080: 00000000 00000000 00000000 00000000
        0x0090: 00000000 00000000 00000000 00000000
        0x00a0: 00000000 00000000 00000000 00000000
        0x00b0: 00000000 00000000 00000000 00000000
        0x00c0: 00002000 00000000 00000000 00000000
        0x00d0: 00000000 00000000 00000000 00000000
        0x00e0: 00000000 00000000 00000000 00000000
        0x00f0: 00000000 00000000 00000000 00000000
 0:1:3: Intel 82371AB Power
        0x0000: Vendor ID: 8086 Product ID: 7113
        0x0004: Command: 0003 Status: 0280
        0x0008: Class: 06 Subclass: 80 Interface: 00 Revision: 03
        0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
        0x0010: BAR empty (00000000)
        0x0014: BAR empty (00000000)
        0x0018: BAR empty (00000000)
        0x001c: BAR empty (00000000)
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 01 Line: 09 Min Gnt: 00 Max Lat: 00
        0x0000: 71138086 02800003 06800003 00000000
        0x0010: 00000000 00000000 00000000 00000000
        0x0020: 00000000 00000000 00000000 11001af4
        0x0030: 00000000 00000000 00000000 00000109
        0x0040: 0000b001 00000000 00000000 00000000
        0x0050: 00000000 00000000 02000000 90000000
        0x0060: 60000000 08000000 00000000 00000000
        0x0070: 00000000 00000000 00000000 00000000
        0x0080: 00000001 00000000 00000000 00000000
        0x0090: 0000b101 00000000 00000000 00000000
        0x00a0: 00000000 00000000 00000000 00000000
        0x00b0: 00000000 00000000 00000000 00000000
        0x00c0: 00000000 00000000 00000000 00000000
        0x00d0: 00090000 00000000 00000000 00000000
        0x00e0: 00000000 00000000 00000000 00000000
        0x00f0: 00000000 00000000 00000000 00000000
 0:2:0: Cirrus Logic CL-GD5446
        0x0000: Vendor ID: 1013 Product ID: 00b8
        0x0004: Command: 0007 Status: 0000
        0x0008: Class: 03 Subclass: 00 Interface: 00 Revision: 00
        0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
        0x0010: BAR mem prefetchable 32bit addr: 0xfc000000/0x02000000
        0x0014: BAR mem 32bit addr: 0xfebf0000/0x00001000
        0x0018: BAR empty (00000000)
        0x001c: BAR empty (00000000)
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: 1af4 Product ID: 1100
        0x0030: Expansion ROM Base Address: febd0000
        0x0038: 00000000
        0x003c: Interrupt Pin: 00 Line: 00 Min Gnt: 00 Max Lat: 00
        0x0000: 00b81013 00000007 03000000 00000000
        0x0010: fc000008 febf0000 00000000 00000000
        0x0020: 00000000 00000000 00000000 11001af4
        0x0030: febd0000 00000000 00000000 00000000
        0x0040: 00000000 00000000 00000000 00000000
        0x0050: 00000000 00000000 00000000 00000000
        0x0060: 00000000 00000000 00000000 00000000
        0x0070: 00000000 00000000 00000000 00000000
        0x0080: 00000000 00000000 00000000 00000000
        0x0090: 00000000 00000000 00000000 00000000
        0x00a0: 00000000 00000000 00000000 00000000
        0x00b0: 00000000 00000000 00000000 00000000
        0x00c0: 00000000 00000000 00000000 00000000
        0x00d0: 00000000 00000000 00000000 00000000
        0x00e0: 00000000 00000000 00000000 00000000
        0x00f0: 00000000 00000000 00000000 00000000
 0:3:0: Qumranet Virtio Network
        0x0000: Vendor ID: 1af4 Product ID: 1000
        0x0004: Command: 0007 Status: 0010
        0x0008: Class: 02 Subclass: 00 Interface: 00 Revision: 00
        0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
        0x0010: BAR io addr: 0x0000c060/0x0020
        0x0014: BAR mem 32bit addr: 0xfebf1000/0x00001000
        0x0018: BAR empty (00000000)
        0x001c: BAR empty (00000000)
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: 1af4 Product ID: 0001
        0x0030: Expansion ROM Base Address: febe0000
        0x0038: 00000000
        0x003c: Interrupt Pin: 01 Line: 0b Min Gnt: 00 Max Lat: 00
        0x0040: Capability 0x11: Extended Message Signaled Interrupts (MSI-X)
        0x0000: 10001af4 00100007 02000000 00000000
        0x0010: 0000c061 febf1000 00000000 00000000
        0x0020: 00000000 00000000 00000000 00011af4
        0x0030: febe0000 00000040 00000000 0000010b
        0x0040: 00020011 00000001 00000801 00000000
        0x0050: 00000000 00000000 00000000 00000000
        0x0060: 00000000 00000000 00000000 00000000
        0x0070: 00000000 00000000 00000000 00000000
        0x0080: 00000000 00000000 00000000 00000000
        0x0090: 00000000 00000000 00000000 00000000
        0x00a0: 00000000 00000000 00000000 00000000
        0x00b0: 00000000 00000000 00000000 00000000
        0x00c0: 00000000 00000000 00000000 00000000
        0x00d0: 00000000 00000000 00000000 00000000
        0x00e0: 00000000 00000000 00000000 00000000
        0x00f0: 00000000 00000000 00000000 00000000
 0:4:0: Qumranet Virtio Storage
        0x0000: Vendor ID: 1af4 Product ID: 1001
        0x0004: Command: 0007 Status: 0010
        0x0008: Class: 01 Subclass: 00 Interface: 00 Revision: 00
        0x000c: BIST: 00 Header Type: 00 Latency Timer: 00 Cache Line Size: 00
        0x0010: BAR io addr: 0x0000c000/0x0040
        0x0014: BAR mem 32bit addr: 0xfebf2000/0x00001000
        0x0018: BAR empty (00000000)
        0x001c: BAR empty (00000000)
        0x0020: BAR empty (00000000)
        0x0024: BAR empty (00000000)
        0x0028: Cardbus CIS: 00000000
        0x002c: Subsystem Vendor ID: 1af4 Product ID: 0002
        0x0030: Expansion ROM Base Address: 00000000
        0x0038: 00000000
        0x003c: Interrupt Pin: 01 Line: 0b Min Gnt: 00 Max Lat: 00
        0x0040: Capability 0x11: Extended Message Signaled Interrupts (MSI-X)
        0x0000: 10011af4 00100007 01000000 00000000
        0x0010: 0000c001 febf2000 00000000 00000000
        0x0020: 00000000 00000000 00000000 00021af4
        0x0030: 00000000 00000040 00000000 0000010b
        0x0040: 00010011 00000001 00000801 00000000
        0x0050: 00000000 00000000 00000000 00000000
        0x0060: 00000000 00000000 00000000 00000000
        0x0070: 00000000 00000000 00000000 00000000
        0x0080: 00000000 00000000 00000000 00000000
        0x0090: 00000000 00000000 00000000 00000000
        0x00a0: 00000000 00000000 00000000 00000000
        0x00b0: 00000000 00000000 00000000 00000000
        0x00c0: 00000000 00000000 00000000 00000000
        0x00d0: 00000000 00000000 00000000 00000000
        0x00e0: 00000000 00000000 00000000 00000000
        0x00f0: 00000000 00000000 00000000 00000000

acpidump:
begin-base64 644 bootstrap.APIC.4
QVBJQ3gAAAAB7EJPQ0hTIEJYUENBUElDAQAAAEJYUEMBAAAAAADg/gEAAAAACAAAAQAAAAEMAQAA
AMD+AAAAAAIKAAACAAAAAAACCgAFBQAAAA0AAgoACQkAAAANAAIKAAoKAAAADQACCgALCwAAAA0A
BAb/AAAB
====
begin-base64 644 bootstrap.DSDT.2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====
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====
begin-base64 644 bootstrap.HPET.5
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====
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====
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====
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====
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====

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Re: Reproducable but intermittent: CVS fails to check out large files on amd64

Stuart Henderson-6
On 2016/02/01 12:44, [hidden email] wrote:

> >Synopsis: CVS fails to check out large files on amd64, sometimes
> >Category: user amd64
> >Environment:
> System      : OpenBSD 5.8
> Details     : OpenBSD 5.8 (GENERIC.MP) #1236: Sun Aug 16 02:31:04 MDT 2015
> [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> Architecture: OpenBSD.amd64
> Machine     : amd64
> >Description:
> When checking out large files using a local CVS server, the
> final 'ok' line is not printed about 2/3 of the time and the
> checkout subsequently fails.
>
> I heard through the grapevine (aka. #openbsd on freenode) that
> this is a known problem affecting amd64. Hopefully some
> diagnosis can shed some light on it. Personally I don't relish
> the thought of digging into cvs' source.

Not seeing this here but you may be running into memory limits.
See dlimit in CVSROOT/config.

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Re: Reproducable but intermittent: CVS fails to check out large files on amd64

Stuart Henderson
In reply to this post by chohag
Trying to resend, jtan.com mail server rejected the last one as spam.

Remote-MTA: dns; mail-filter-1.jtan.com                                            
Diagnostic-Code: smtp; 550-FAKE-REJECT - SPAMCOUNT-HI - [77 NP=-1 PHP=-1 LNK=-1    
    BODY=40 HEAD=-6 550-FLAGS=-5] [S=77 -] - X=pascal                              
    H=symphytum.spacehopper.org [82.68.199.130]                                    
    550-HELO=[symphytum.spacehopper.org] SN=[[hidden email]]                    
    T=[[hidden email]] 550-S=[Re: Reproducable but intermittent: CVS fails to      
    check out large 550 files on amd64]  

I suspect that, despite the SPF for openbsd.org being "~all" rather than
"-all", some sites are increasing spam scores based on the SMTP sender
not being listed.


On 2016/02/01 12:44, [hidden email] wrote:

> >Synopsis: CVS fails to check out large files on amd64, sometimes
> >Category: user amd64
> >Environment:
> System      : OpenBSD 5.8
> Details     : OpenBSD 5.8 (GENERIC.MP) #1236: Sun Aug 16 02:31:04 MDT 2015
> [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> Architecture: OpenBSD.amd64
> Machine     : amd64
> >Description:
> When checking out large files using a local CVS server, the
> final 'ok' line is not printed about 2/3 of the time and the
> checkout subsequently fails.
>
> I heard through the grapevine (aka. #openbsd on freenode) that
> this is a known problem affecting amd64. Hopefully some
> diagnosis can shed some light on it. Personally I don't relish
> the thought of digging into cvs' source.

Not seeing this here but you may be running into memory limits.
See dlimit in CVSROOT/config.

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Re: Reproducable but intermittent: CVS fails to check out large files on amd64

chohag
In reply to this post by Stuart Henderson-6
Stuart Henderson writes:

> On 2016/02/01 12:44, [hidden email] wrote:
> > >Synopsis: CVS fails to check out large files on amd64, sometimes
> > >Category: user amd64
> > >Environment:
> > System      : OpenBSD 5.8
> > Details     : OpenBSD 5.8 (GENERIC.MP) #1236: Sun Aug 16 02:31:04 MDT 2015
> > [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> >
> > Architecture: OpenBSD.amd64
> > Machine     : amd64
> > >Description:
> > When checking out large files using a local CVS server, the
> > final 'ok' line is not printed about 2/3 of the time and the
> > checkout subsequently fails.
> >
> > I heard through the grapevine (aka. #openbsd on freenode) that
> > this is a known problem affecting amd64. Hopefully some
> > diagnosis can shed some light on it. Personally I don't relish
> > the thought of digging into cvs' source.
>
> Not seeing this here but you may be running into memory limits.
> See dlimit in CVSROOT/config.

If it's memory limits, it's not anything caused by dlimit, which
complains correctly when it's reached (I think - see 8k).

For reasons I don't care to find out right now, the dlimit in the
originally sync'd version is 64*1024-1. I've kept up the pattern.


No dlimit line
without:# for k in `jot 100 1`; do grep . < in | cvs server | tail -n1; done | sort | uniq -c
without:  11     3297. Xterm patch #119 (#3335, Thomas Dickey).
without:  89 ok

dlimit=262143
256k:# for k in `jot 100 1`; do grep . < in | cvs server | tail -n1; done | sort | uniq -c
256k:  17     3297. Xterm patch #119 (#3335, Thomas Dickey).
256k:  83 ok

dlimit=65535
64k:# for k in `jot 100 1`; do grep . < in | cvs server | tail -n1; done | sort | uniq -c    
64k:  16     3297. Xterm patch #119 (#3335, Thomas Dickey).
64k:  84 ok

dlimit=32767
32k:# for k in `jot 100 1`; do grep . < in | cvs server | tail -n1; done | sort | uniq -c
32k:  13     3297. Xterm patch #119 (#3335, Thomas Dickey).
32k:  87 ok

dlimit=8191
8k:# grep . < in | cvs server                                                            
8k:Valid-requests Root Valid-responses valid-requests Repository Directory Max-dotdot Static-directory Sticky Checkin-prog Update-prog Entry Kopt Checkin-time Modified Is-modified UseUnchanged Unchanged Notify Questionable Case Argument Argumentx Global_option Gzip-stream wrapper-sendme-rcsOptions Set expand-modules ci co update diff log rlog add remove update-patches gzip-file-contents status rdiff tag rtag import admin export history release watch-on watch-off watch-add watch-remove watchers editors init annotate rannotate noop version
8k:ok
8k:E Terminated with fatal signal 11
8k:E Core dumped; preserving /tmp/cvs-serv25310 on server.
8k:E CVS locks may need cleaning up.
8k:error  


Cheers,

Matthew