2.6.current Oops: strace + waitpid()?

[Krzysztof Halasa <khc@pm.waw.pl>]

Hi,

intrepid:~$ cat test.pl
#!/usr/bin/perl

open my $fd, "-|", "/bin/true";

intrepid:~$ strace -f ./test.pl

Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
00000000
*pde = 00000000
Oops: 0000 [#1]
PREEMPT 
Modules linked in: binfmt_misc ohci1394 ieee1394 pci200syn hdlc syncppp
emu10k1_gp snd_cmipci gameport snd_opl3_lib snd_mpu401_uart epic100 sg
sym53c8xx scsi_transport_spi evdev
CPU:    0
EIP:    0060:[<00000000>]    Not tainted VLI
EFLAGS: 00010286   (2.6.12-rc3) 
EIP is at 0x0
eax: ca476000   ebx: 01200011   ecx: 00000000   edx: 00000000
esi: cfbd3060   edi: 00000000   ebp: ca476000   esp: ca476fc4
ds: 007b   es: 007b   ss: 0068
Process test.pl (pid: 3168, threadinfo=ca476000 task=cfbd3060)
Stack: 01202011 00000000 00000000 00000000 b7c9a708 bfea12cc 00000000 0000007b 
       0000007b 00000078 ffffe410 00000073 00000282 bfea121c 0000007b 
Call Trace:
Code:  Bad EIP value.

2.6.12-rc3 (current), gcc version 3.4.3 20050227 (Red Hat 3.4.3-22.fc3),
Athlon XP.

The machine is still alive, oops is 100% reproducible.

 3174 ?        Ss     0:00 \_ xterm -rv
 3176 pts/1    Ss     0:00     \_ bash
 3210 pts/1    S+     0:00         \_ strace -f ./test.pl
 3211 pts/1    T+     0:00             \_ /usr/bin/perl ./test.pl
 3212 pts/1    Z+     0:00                 \_ [test.pl] <defunct>

Any idea?
-- 
Krzysztof Halasa

CONFIG_X86=y
CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
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CONFIG_HOTPLUG=y
CONFIG_KOBJECT_UEVENT=y
CONFIG_KALLSYMS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
CONFIG_BASE_SMALL=0
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CONFIG_X86_XADD=y
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CONFIG_GENERIC_CALIBRATE_DELAY=y
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CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
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CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_USE_3DNOW=y
CONFIG_HPET_TIMER=y
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_X86_UP_APIC=y
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CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_TSC=y
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CONFIG_SCSI=y
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CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_SYM53C8XX_2=m
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
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CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_QLA2XXX=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_RAID1=y
CONFIG_IEEE1394=m
CONFIG_IEEE1394_OHCI1394=m
CONFIG_IEEE1394_VIDEO1394=m
CONFIG_IEEE1394_DV1394=m
CONFIG_IEEE1394_RAWIO=m
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_ROUTE_MULTIPATH=y
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CONFIG_BRIDGE=m
CONFIG_VLAN_8021Q=m
CONFIG_NET_SCHED=y
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CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_NET_PCI=y
CONFIG_EPIC100=m
CONFIG_WAN=y
CONFIG_DSCC4=m
CONFIG_HDLC=m
CONFIG_HDLC_RAW=y
CONFIG_HDLC_RAW_ETH=y
CONFIG_HDLC_CISCO=y
CONFIG_HDLC_FR=y
CONFIG_HDLC_PPP=y
CONFIG_PCI200SYN=m
CONFIG_WANXL=m
CONFIG_PC300=m
CONFIG_FARSYNC=m
CONFIG_INPUT=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
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CONFIG_INPUT_PCSPKR=m
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CONFIG_SERIO_PCIPS2=y
CONFIG_SERIO_LIBPS2=y
CONFIG_GAMEPORT=m
CONFIG_GAMEPORT_EMU10K1=m
CONFIG_SOUND_GAMEPORT=m
CONFIG_VT=y
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CONFIG_SERIAL_8250=y
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CONFIG_SENSORS_ASB100=y
CONFIG_SENSORS_EEPROM=m
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CONFIG_SOUND=y
CONFIG_SND=y
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CONFIG_SND_PCM=y
CONFIG_SND_HWDEP=y
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CONFIG_SND_SEQUENCER=y
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CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_AC97_CODEC=y
CONFIG_SND_EMU10K1=y
CONFIG_SND_CMIPCI=m
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB=y
CONFIG_USB_DEVICEFS=y
CONFIG_USB_SUSPEND=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_SPLIT_ISO=y
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CONFIG_THRUSTMASTER_FF=y
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CONFIG_AUTOFS4_FS=m
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CONFIG_JOLIET=y
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y
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CONFIG_FAT_DEFAULT_CODEPAGE=852
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-2"
CONFIG_PROC_FS=y
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CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_RAMFS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V4=y
CONFIG_NFS_DIRECTIO=y
CONFIG_LOCKD=y
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CONFIG_SUNRPC=y
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CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-2"
CONFIG_NLS_CODEPAGE_852=m
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CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_UTF8=m
CONFIG_DEBUG_KERNEL=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_EARLY_PRINTK=y
CONFIG_4KSTACKS=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_MPPARSE=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
CONFIG_CRC32=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_PC=y
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