Stephane
On Tue, 25 Nov 1997, Han-Wen Nienhuys wrote:
>
> I have a question about Cyrix CPUs (just bought one ..). I have a
> SGS-Thomson fabricated 6x86 @ 133mhz (P166+). It is a step 1 rev 7 chip,
> and AFAICT it is adequately cooled (ball bearing fan, conducting paste)
>
> The problem: I have semireproducible lockups.
>
> If I shutdown X, and continuously run a heavy C++ compile (see sig) from
> the command line, I get a lockup after some time (between 1 or 8 hours).
> this is my torture script
>
> #!/bin/sh
>
> rm log
> touch log
> tail -f log&
>
> while true; do
> date >> log
> make clean 2>&1 >> log
> sync
> make all 2>&1 >> log
> sync
> done
>
> This happened to me with 2 motherboards:
>
> 1. Noname triton VX mobo (happened with 32 mb EDO, and 24 mb FPM, with a
> S3 PCI card and with a CLGD 5426 ISA). This mobo had a linear voltage
> regulator (transistors with large heatsinks)
>
> 2. A Noname VXPro+ mobo (32 mb EDO, S3 PCI card). This mobo has a
> switching voltage regulator (copper coils).
>
> The lockup is *hard*: the keyboard doesn't respond, the hard-disk is dead,
> and there are no traces in the syslogs. One of funny things is, that with
> one lockup the CPU was fairly hot, and with some others it was cool.
> Another curious thing is: this system has produced *zero* sig11 faults (in
> or so 60 compilations), so the memory system should be OK.
>
> This is linux 2.0.31-pre10 with Andrew Balsa's big Cyrix-patch. I tried
> various combinations of Cyrix options and kernel compile options, none of
> them had any effect.
>
> Does anyone have a clue what is going on? Could it be a faulty CPU?
>
> hanwen:~$ cat /proc/cpuinfo /etc/rc.d/ /usr/src/linux/.config
>
> processor : 0
> cpu family : 5
> model : 6x86 2x Core/Bus Clock
> vendor_id : CyrixInstead
> stepping : 1 rev 7
> fdiv_bug : no
> hlt_bug : no
> sep_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu
> bogomips : 132.71
> #
> # Automatically generated by make menuconfig: don't edit
> #
>
> #
> # Code maturity level options
> #
> CONFIG_EXPERIMENTAL=y
>
> #
> # Loadable module support
> #
> CONFIG_MODULES=y
> CONFIG_MODVERSIONS=y
> CONFIG_KERNELD=y
>
> #
> # General setup
> #
> # CONFIG_MATH_EMULATION is not set
> CONFIG_NET=y
> # CONFIG_MAX_16M is not set
> CONFIG_PCI=y
> CONFIG_PCI_OPTIMIZE=y
> CONFIG_SYSVIPC=y
> CONFIG_BINFMT_AOUT=m
> CONFIG_BINFMT_ELF=y
> # CONFIG_BINFMT_JAVA is not set
> CONFIG_KERNEL_ELF=y
> CONFIG_M586=y
>
> #
> # Processor features
> #
> CONFIG_CYRIX=y
> CONFIG_CYRIX_SUSP_HLT=y
> CONFIG_CYRIX_FAST_IO=y
> # CONFIG_CYRIX_5X86 is not set
> CONFIG_CYRIX_6X86=y
> CONFIG_CYRIX_6X86_NOLOCK=y
> CONFIG_CYRIX_6X86_WTALLOC=y
> CONFIG_CYRIX_6X86_BTB=y
> CONFIG_CYRIX_6X86_BTB_RISKY=y
> CONFIG_CYRIX_6X86_VSPM=y
> CONFIG_CYRIX_6X86_VSPM_NOTRADPAGE=y
>
> #
> # Floppy, IDE, and other block devices
> #
> CONFIG_BLK_DEV_FD=m
> CONFIG_BLK_DEV_IDE=y
> # CONFIG_BLK_DEV_HD_IDE is not set
> CONFIG_BLK_DEV_IDECD=y
> # CONFIG_BLK_DEV_IDETAPE is not set
> # CONFIG_BLK_DEV_IDEFLOPPY is not set
> # CONFIG_BLK_DEV_IDESCSI is not set
> # CONFIG_BLK_DEV_IDE_PCMCIA is not set
> # CONFIG_BLK_DEV_CMD640 is not set
> # CONFIG_BLK_DEV_RZ1000 is not set
> # CONFIG_BLK_DEV_TRITON is not set
> CONFIG_IDE_CHIPSETS=y
> # CONFIG_BLK_DEV_ALI14XX is not set
> # CONFIG_BLK_DEV_DTC2278 is not set
> # CONFIG_BLK_DEV_HT6560B is not set
> # CONFIG_BLK_DEV_PROMISE is not set
> # CONFIG_BLK_DEV_QD6580 is not set
> # CONFIG_BLK_DEV_UMC8672 is not set
> # 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
> # CONFIG_BLK_DEV_HD 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_SYN_COOKIES is not set
> # CONFIG_RST_COOKIES is not set
> # CONFIG_IP_ACCT is not set
> # CONFIG_IP_ROUTER is not set
> # CONFIG_NET_IPIP is not set
> # 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 is not set
> # CONFIG_IPX is not set
> # CONFIG_ATALK is not set
> # CONFIG_AX25 is not set
> # CONFIG_BRIDGE is not set
> # CONFIG_NETLINK is not set
>
> #
> # SCSI support
> #
> # CONFIG_SCSI is not set
>
> #
> # Network device support
> #
> CONFIG_NETDEVICES=y
> CONFIG_DUMMY=m
> # CONFIG_EQUALIZER is not set
> # CONFIG_DLCI is not set
> # CONFIG_PLIP is not set
> CONFIG_PPP=m
> # CONFIG_SLIP is not set
> # CONFIG_NET_RADIO is not set
> # CONFIG_NET_ETHERNET is not set
> # CONFIG_TR is not set
> # CONFIG_FDDI 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_MINIX_FS=m
> # CONFIG_EXT_FS is not set
> CONFIG_EXT2_FS=y
> # CONFIG_XIA_FS is not set
> CONFIG_FAT_FS=m
> CONFIG_MSDOS_FS=m
> # CONFIG_VFAT_FS is not set
> # CONFIG_UMSDOS_FS is not set
> CONFIG_PROC_FS=y
> # CONFIG_NFS_FS is not set
> # CONFIG_SMB_FS is not set
> CONFIG_ISO9660_FS=m
> # CONFIG_HPFS_FS is not set
> # CONFIG_SYSV_FS is not set
> # CONFIG_AUTOFS_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=m
> # CONFIG_SPECIALIX is not set
> # CONFIG_MOUSE 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=y
> # CONFIG_WATCHDOG_NOWAYOUT is not set
> # CONFIG_WDT is not set
> CONFIG_SOFT_WATCHDOG=m
> # CONFIG_PCWATCHDOG is not set
> # CONFIG_RTC is not set
>
> #
> # Sound
> #
> # CONFIG_SOUND is not set
> # CONFIG_PCSP is not set
>
> #
> # Kernel hacking
> #
> # CONFIG_PROFILE is not set
>
>
> Han-Wen Nienhuys | LilyPond - The GNU Project music typesetter
> http://www.stack.nl/~hanwen | http://www.stack.nl/~hanwen/lilypond/
>
>