Em 16-05-2014 16:45, Kenneth Westerback escreveu: > On 16 May 2014 15:00, Giancarlo Razzolini <[email protected]> wrote: >> Hi, >> >> I was configuring one new interface in one of my new machines, and I >> disabled ipv6 with -inet6 as I always do. But I handcrafted the >> hostname.if file and forgot to put a NONE in the broadcast address. This >> caused the ifconfig to segfault when called from the /etc/netstart >> script. For example: >> >> /etc/hostname.if: >> inet 1.2.3.4 255.255.255.0 -inet6 >> >> result: ifconfig segfault. >> >> /etc/hostname.if: >> inet 1.2.4.5 255.255.255.0 NONE -inet6 >> >> result: everything work as usual. >> >> I am using 5.5 stable. Can't post the dmesg right now, but will >> do this night. I will also take a look at the core dump, see if I can >> pinpoint where are the bits responsible for the segfault. >> >> Cheers, >> >> -- >> Giancarlo Razzolini >> GPG: 4096R/77B981BC >> > Did a quick test on amd64 -current using run0, and got 'bad value: -inet6'. > > .... Ken As I mentioned, I'm running 5.5 stable. So this might got fixed in current, I'm taking a look at the CVS commits right now to see if it was fixed. But, funny thing, I've managed to get another segmentation fault, this time from command line. While trying to replicate the bug in another machine, I've wrongly typed:
ifconfig em4 -inet Instead of: ifconfig em4 -inet6 The first command also caused a segfault. As promised, follows a dmesg of one of the machines where I reproduced this segfault: OpenBSD 5.5 (GENERIC) #0: Fri Apr 25 13:07:59 CEST 2014 [email protected]:/binpatchng/work-binpatch55-amd64/src/sys/arch/amd64/compile/GENERIC real mem = 520085504 (495MB) avail mem = 497729536 (474MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xf09f0 (10 entries) bios0: vendor Bochs version "Bochs" date 01/01/2011 bios0: QEMU Standard PC (i440FX + PIIX, 1996) acpi0 at bios0: rev 0 acpi0: sleep states S3 S4 S5 acpi0: tables DSDT FACP SSDT APIC HPET acpi0: wakeup devices acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat acpihpet0 at acpi0: 100000000 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpicpu0 at acpi0 mpbios at bios0 not configured cpu0 at mainbus0: (uniprocessor) cpu0: QEMU Virtual CPU version 2.0.0, 2813.47 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,x2APIC,POPCNT,NXE,LONG,LAHF,SVM,ABM,SSE4A 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 mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges 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 wd0 at pciide0 channel 0 drive 0: <QEMU HARDDISK> wd0: 16-sector PIO, LBA48, 30720MB, 62914560 sectors wd0(pciide0:0:0): using PIO mode 4, DMA mode 2 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 2.0.> 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: irq 11 piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: irq 9 iic0 at piixpm0 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:ab:f7:d6 virtio0: irq 11 virtio1 at pci0 dev 4 function 0 "Qumranet Virtio Memory" rev 0x00: Virtio Memory Balloon Device viomb0 at virtio1 virtio1: irq 11 virtio2 at pci0 dev 5 function 0 "Qumranet Virtio Network" rev 0x00: Virtio Network Device vio1 at virtio2: address 52:54:00:4f:65:af virtio2: irq 10 virtio3 at pci0 dev 6 function 0 "Qumranet Virtio Network" rev 0x00: Virtio Network Device vio2 at virtio3: address 52:54:00:42:d8:ff virtio3: irq 10 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 1: density unknown usb0 at uhci0: USB revision 1.0 uhub0 at usb0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 nvram: invalid checksum vscsi0 at root scsibus1 at vscsi0: 256 targets softraid0 at root scsibus2 at softraid0: 256 targets root on wd0a (ae6577d8240a3c26.a) swap on wd0b dump on wd0b clock: unknown CMOS layout This one is my test machine, and yes, it's virtualized. But I reproduced it in an OpenBSD installed directly on physical hardware too. I imagine this segfault would happen on any installation, either it be on real hardware or virtualized, but I've tested on both anyway. Cheers, -- Giancarlo Razzolini GPG: 4096R/77B981BC
