Hi!
Two different errors are to be reported with linux-2.3.99-pre6
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First one:
As configuration I have set:
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_PCI_EXPERIMENTAL=y
CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_IDEDMA_AUTO=y
CONFIG_BLK_DEV_IDE_MODES=y
While booting I saw:
Uniform Multi-Platform E-IDE driver Revision: 6.30
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller on PCI bus 00 dev 21
VP_IDE: not 100% native mode: will probe irqs later
Split FIFO Configuration: 8 Primary buffers, threshold = 1/2
8 Second. buffers, threshold = 1/2
ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio <<<!!!
ide0: VIA Bus-Master (U)DMA Timing Config Success
ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:pio, hdd:pio
ide1: VIA Bus-Master (U)DMA Timing Config Success
hda: ST313032A, ATA DISK drive
hdc: Pioneer DVD-ROM ATAPIModel DVD-103S 011, ATAPI CDROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 25434228 sectors (13022 MB) w/512KiB Cache, CHS=25232/16/63
hdc: ATAPI DVD-ROM drive, 512kB Cache, (U)DMA
This said me, that /dev/hda is running with DMA enabled...
Asking hdparm, it said the opposite and transferrates spoke for themselves.
I included a call to hdparm -d1 (enable DMA) in my boot scripts.
This works well, but now a `cat /proc/ide/via/` segfaults. Trace is:
kernel: Oops: 0000
kernel: CPU: 0
kernel: EIP: 0010:[vsprintf+442/880]
kernel: EFLAGS: 00010297
kernel: eax: f87e016d ebx: c2ede211 ecx: f87e016d edx: fffffffe
kernel: esi: c3595f34 edi: ffffffff ebp: f87e016d esp: c3595ef4
kernel: ds: 0018 es: 0018 ss: 0018
kernel: Process cat (pid: 494, stackpage=c3595000)
kernel: Stack: c024b2a5 c024b2a9 c2ede1fa c3595f4f c3595f14 c01af60e ffffffff 00000000
kernel: c0219894 c2ede1fa c024b398 c3595f30 c01af63d c2ede1fa c024b380 f87e016d
kernel: f87e016d c2ede000 c2ede162 00000000 c2ede000 c024b680 3aede0d6 c01af97e
kernel: Call Trace: [ApolloISAChipInfo+853/6096] [ApolloISAChipInfo+857/6096] [print_apollo_ide_config+174/448] [sprintf+20/5432] [ApolloISAChipInfo+1096/6096] [print_apollo_ide_config+221/448] [ApolloISAChipInfo+1072/6096]
kernel: [<f87e016d>] [<f87e016d>] [ApolloISAChipInfo+1840/6096] [via_get_info+78/144] [proc_file_read+263/544] [sys_read+192/224] [system_call+52/56]
kernel: Code: 80 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 89 44 24 10 8b 44
This works before (without using hdparm)....
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Secondly:
(this one is really myterious...I think)
Rebooting -- especially unmounting -- works well as long as I DO NOT the following:
mount -t ramfs ramfs ./ramfs
cd ./ramfs
chown <username>.<username> .
cp <some files> .
rm -rf *
cd ~
after this, unmounting any partitions while rebooting end up in "device busy"
and umounting fails (as in one of the previous 2.3.99-preX kernels).
ONLY using ramfs is ok!!! But changing the ownership kills it.
My software:
modprobe version 2.3.11
mount-2.10k
glibc-2.1.3
linux-2.3.99-pre6
GNU ld version 2.9.5 (with BFD 2.9.5.0.37)
My hardware:
128MB RAM
ASUS K7M motherboard
Athlon 600MHz
Please mail me, if I can help or give more infos.... :-)
KEEP HACKING!
Meino
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