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SubjectRe: pre 2.0.5 2.0.6 hang with /dev/fd0
On Mon, 20 May 1996, Alex Gitelman wrote:

> pre 2.0.5 and 2.0.6 always hang then I mount /dev/fd0 with minix
> and try to delete some files. File created by touch was deleted but
> files of biger size cause hang. No messages - just total freezing.
> 2.0.4 - OK.
>
Well, I noticed that yesterday and thought it was faulty hardware, but
when I tried with pre2.0.4, it did work, so I guess it's a bug. It's
still there with pre2.0.7, which I just tried.

Under X it frozes everything solid , but then I reproduced it in text
mode and was able to change VCs, and print the CPU state.

It looks like it loops in V1_trunc_indirect, from the CPU state :
EIP: 0010:[<0014a381>] EFLAGS: 00000257
EAX: 00000000 EBX: 00000000 ECX: 015c6ef4 EDX:013f46ac
ESI: 00000000 EDI: 00000000 EBP: 00000488 DS: 0018 ES: 0018 FS: 002b GS: 002b

and from vmlinux :
0014a1bc t V1_trunc_direct
0014a1bc t gcc2_compiled.
0014a2c0 t V1_trunc_indirect
0014a4e8 t V1_trunc_dindirect
0014a638 T V1_minix_truncate

(asking for other states shows that it stays somewhere between 0014a340
and 0014a390).

This is on a fresh pre2.0.7, with nothing special enabled (config follows).

Frank
--
X is a single letter denoting the unknown. This is X too.
Motif is what everyone uses to annoy people that dont have it.
Openwindoze is related to X only harder to spell and slower to use.
[Peter Evans (peter@gol1.gol.com) in comp.unix.admin]

.config:
#
# Automatically generated make config: don't edit
#

#
# Code maturity level options
#
# CONFIG_EXPERIMENTAL is not set

#
# Loadable module support
#
# CONFIG_MODULES is not set

#
# General setup
#
# CONFIG_MATH_EMULATION is not set
CONFIG_NET=y
# CONFIG_MAX_16M is not set
# CONFIG_PCI is not set
CONFIG_SYSVIPC=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
CONFIG_KERNEL_ELF=y
CONFIG_M486=y

#
# Floppy, IDE, and other block devices
#
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_IDE=y

#
# Please see drivers/block/README.ide for help/info on IDE drives
#
# CONFIG_BLK_DEV_HD_IDE is not set
# CONFIG_BLK_DEV_IDECD is not set
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDE_PCMCIA is not set
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_IDE_CHIPSETS is not set

#
# Additional Block Devices
#
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_XD is not set

#
# Networking options
#
# CONFIG_FIREWALL is not set
# CONFIG_NET_ALIAS is not set
CONFIG_INET=y
# CONFIG_IP_FORWARD is not set
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ACCT is not set

#
# (it is safe to leave these untouched)
#
# CONFIG_INET_PCTCP is not set
# CONFIG_INET_RARP is not set
# CONFIG_NO_PATH_MTU_DISCOVERY is not set
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y

#
#
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_AX25 is not set

#
# SCSI support
#
# CONFIG_SCSI is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_RADIO is not set
CONFIG_NET_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL1 is not set
# CONFIG_EL2 is not set
CONFIG_EL3=y
# CONFIG_VORTEX is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_ISA is not set
# CONFIG_NET_EISA is not set
# CONFIG_NET_POCKET is not set
# CONFIG_TR is not set
# CONFIG_ARCNET is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# CD-ROM drivers (not for SCSI or IDE/ATAPI drives)
#
# CONFIG_CD_NO_IDESCSI is not set

#
# Filesystems
#
# CONFIG_QUOTA is not set
# CONFIG_LOCK_MANDATORY is not set
CONFIG_MINIX_FS=y
# CONFIG_EXT_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_XIA_FS is not set
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
# CONFIG_VFAT_FS is not set
# CONFIG_UMSDOS_FS is not set
CONFIG_PROC_FS=y
CONFIG_NFS_FS=y
# CONFIG_ROOT_NFS is not set
CONFIG_SMB_FS=y
# CONFIG_ISO9660_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_UFS_FS is not set

#
# Character devices
#
CONFIG_SERIAL=y
# CONFIG_DIGI is not set
# CONFIG_CYCLADES is not set
# CONFIG_STALDRV is not set
# CONFIG_RISCOM8 is not set
# CONFIG_PRINTER is not set
# CONFIG_BUSMOUSE is not set
# CONFIG_PSMOUSE is not set
# CONFIG_MS_BUSMOUSE is not set
# CONFIG_ATIXL_BUSMOUSE is not set
# CONFIG_UMISC is not set
# CONFIG_QIC02_TAPE is not set
# CONFIG_FTAPE is not set
# CONFIG_APM is not set
# CONFIG_WATCHDOG is not set
# CONFIG_RTC is not set

#
# Sound
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
# CONFIG_PROFILE is not set



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