Re: X segfault

[T <bobs%thelibertytree.org@localhost>]

On Mon, 7 Nov 2022 23:22:37 -0000 (UTC), T wrote:

> Installed debug sets and this is the traceback and pcictl information.
> This is for NetBSD 9.3_STABLE:
> 
> [Switching to LWP 1 of process 649]
> fast_remainder32 (_s2=<optimized out>, _s1=<optimized out>,
> _m=<optimized out>, _div=<optimized out>, _v=<optimized out>) at
> /usr/obj/prep/netbsd-9/
> destdir/usr/include/sys/bitops.h:294 294    
> /usr/obj/prep/netbsd-9/destdir/usr/include/sys/bitops.h: No such file or
> directory.
> (gdb) cont Continuing.
> 
> Program received signal SIGILL, Illegal instruction.
> 0xfd9a2940 in OPENSSL_ppc64_probe () from /usr/lib/libcrypto.so.14 (gdb)
> cont Continuing.
> 
> Program received signal SIGILL, Illegal instruction.
> 0xfd9a2940 in OPENSSL_ppc64_probe () from /usr/lib/libcrypto.so.14 (gdb)
> cont Continuing.
> 
> Program received signal SIGILL, Illegal instruction.
> 0xfd9a2960 in OPENSSL_altivec_probe () from /usr/lib/libcrypto.so.14
> (gdb) cont Continuing.
> 
> Program received signal SIGILL, Illegal instruction.
> 0xfd9a2960 in OPENSSL_altivec_probe () from /usr/lib/libcrypto.so.14
> (gdb) cont Continuing.
> 
> Program received signal SIGILL, Illegal instruction.
> 0xfd9a29a4 in OPENSSL_madd300_probe () from /usr/lib/libcrypto.so.14
> (gdb) cont Continuing.
> 
> Program received signal SIGILL, Illegal instruction.
> 0xfd9a29a4 in OPENSSL_madd300_probe () from /usr/lib/libcrypto.so.14
> (gdb) cont Continuing.
> 
> Program received signal SIGSEGV, Segmentation fault.
> pci_io_read8 (handle=0x0, reg=reg@entry=972) at /usr/xsrc/external/mit/
> libpciaccess/dist/src/common_io.c:184 184    
> /usr/xsrc/external/mit/libpciaccess/dist/src/common_io.c: No such file
> or directory.
> (gdb) bt #0  pci_io_read8 (handle=0x0, reg=reg@entry=972)
>     at /usr/xsrc/external/mit/libpciaccess/dist/src/common_io.c:184
> #1  0xfca11c60 in stdReadMiscOut (hwp=<optimized out>)
>     at /usr/xsrc/external/mit/xorg-server/dist/hw/xfree86/vgahw/vgaHW.c:
> 262 #2  0xfca14e90 in vgaHWGetIOBase (hwp=hwp@entry=0xfcb5c700)
>     at /usr/xsrc/external/mit/xorg-server/dist/hw/xfree86/vgahw/vgaHW.c:
> 1790 #3  0xfca876d8 in S3PreInit (pScrn=0xfdc3c800, flags=<optimized
> out>)
>     at /usr/xsrc/external/mit/xf86-video-s3/dist/src/s3_driver.c:328
> #4  0x0189c140 in InitOutput ()
> #5  0x0182eab8 in dix_main ()
> #6  0x0182e884 in ___start ()
> #7  0x0182e65c in _start ()
> 
> 
> 
> # pcictl /dev/pci0 dump -b 000 -d 14 |more PCI configuration registers:
>   Common header:
>     0x00: 0x88c15333 0x02000003 0x00010000 0x00000000
> 
>     Vendor Name: S3 (0x5333)
>     Device Name: 86C864-1 ("Vision864") (0x88c1)
>     Command register: 0x0003
>       I/O space accesses: on Memory space accesses: on Bus mastering:
>       off Special cycles: off MWI transactions: off Palette snooping:
>       off Parity error checking: off Address/data stepping: off System
>       error (SERR): off Fast back-to-back transactions: off Interrupt
>       disable: off
>     Status register: 0x0200
>       Immediate Readiness: off Interrupt status: inactive Capability
>       List support: off 66 MHz capable: off User Definable Features
>       (UDF) support: off Fast back-to-back capable: off Data parity
>       error detected: off DEVSEL timing: medium (0x1)
>       Slave signaled Target Abort: off Master received Target Abort: off
>       Master received Master Abort: off Asserted System Error (SERR):
>       off Parity error detected: off
>     Class Name: prehistoric (0x00)
>     Subclass Name: VGA (0x01)
>     Interface: 0x00 Revision ID: 0x00 BIST: 0x00 Header Type: 0x00
>     (0x00)
>     Latency Timer: 0x00 Cache Line Size: 0bytes (0x00)
> 
>   Type 0 ("normal" device) header:
>     0x10: 0x00000000 0x00000000 0x00000000 0x00000000 0x20: 0x00000000
>     0x00000000 0x00000000 0x00000000 0x30: 0x00850000 0x00000000
>     0x00000000 0x00000000
> 
>     Base address register at 0x10
>       not implemented
>     Base address register at 0x14
>       not implemented
>     Base address register at 0x18
>       not implemented
>     Base address register at 0x1c
>       not implemented
>     Base address register at 0x20
>       not implemented
>     Base address register at 0x24
>       not implemented
>     Cardbus CIS Pointer: 0x00000000 Subsystem vendor ID: 0x0000
>     Subsystem ID: 0x0000 Expansion ROM Base Address Register: 0x00850000
>       base: 0x00850000 Expansion ROM Enable: off Validation Status:
>       Validation not supported Validation Details: 0x0
>     Reserved @ 0x34: 0x00000000 Reserved @ 0x38: 0x00000000 Maximum
>     Latency: 0x00 Minimum Grant: 0x00 Interrupt pin: 0x00 (none)
>     Interrupt line: 0x00
> 
>   Device-dependent header:
>     0x40: 0x00000000 0x00000000 0x00000000 0x00000000 0x50: 0x00000000
>     0x00000000 0x00000000 0x00000000 0x60: 0x00000000 0x00000000
>     0x00000000 0x00000000 0x70: 0x00000000 0x00000000 0x00000000
>     0x00000000 0x80: 0x00000000 0x00000000 0x00000000 0x00000000 0x90:
>     0x00000000 0x00000000 0x00000000 0x00000000 0xa0: 0x00000000
>     0x00000000 0x00000000 0x00000000 0xb0: 0x00000000 0x00000000
>     0x00000000 0x00000000 0xc0: 0x00000000 0x00000000 0x00000000
>     0x00000000 0xd0: 0x00000000 0x00000000 0x00000000 0x00000000 0xe0:
>     0x00000000 0x00000000 0x00000000 0x00000000 0xf0: 0x00000000
>     0x00000000 0x00000000 0x00000000

I traced this issue back to changes made in the S3 driver and posted the 
issue to the tech-x11 mailing list. To read more details about it, check 
out this link:
https://mail-index.netbsd.org/tech-x11/2022/11/15/msg002329.html