Try a 2.4.21-pre4-ac4 at least. It fixed our problems with flash in true IDE mode here. HTH Guennadi > I've got a mipsel linux 2.4.18 system that has a compact flash IDE > disk as hda. For some reason, in grok_partitions, the kernel goes > bye-bye. I've traced it as far as read_page_cache(). > > The console prints this: > > ide0 at 0x2200-0x2207,0x220a on irq 3 > config_drive_xfer_rate for drive hda (0) > hda: 250880 sectors (128 MB) w/1KiB Cache, CHS=980/8/32, DMA > Partition check: > /dev/ide/host0/bus0/target0/lun0: > > Then hangs. If I use KGDB to trace the kernel to that point, and do a > backtrace, here's what I see: > > #0 add_to_page_cache_unique (page=0x81042840, mapping=0x810b7520, offset=0, hash=0x8109df5c) > at /mipsel-linux/include/asm/atomic.h:133 > #1 0x80133d8c in read_cache_page (mapping=0x810b7520, index=0, filler=0x8014b2d4 <blkdev_readpage>, data=0x0) > at filemap.c:2780 > #2 0x8016b83c in read_dev_sector (bdev=0xffffcfe1, n=2165011744, p=0x803b9dd0) at check.c:433 > #3 0x8016bc98 in handle_ide_mess (bdev=0x810a2120) at msdos.c:485 > #4 0x8016bf18 in msdos_partition (hd=0x803b53e0, bdev=0x810a2120, first_sector=0, > first_part_minor=-2130059428) at msdos.c:555 > #5 0x8016b114 in check_partition (hd=0x803b53e0, dev=768, first_part_minor=1) at check.c:270 > #6 0x8016b77c in grok_partitions (dev=0x803b53e0, drive=-2130042592, minors=64, size=250880) at check.c:415 > #7 0x8016b644 in register_disk (gdev=0x1, dev=8480, minors=0, ops=0x8109df5c, size=250880) at check.c:390 > #8 0x8020b79c in ide_geninit (hwif=0x803a3f14) at ide.c:666 > #9 0x80211ae4 in ide_init () at ide.c:3840 > #10 0x801ffd00 in blk_dev_init () at ll_rw_blk.c:1159 > #11 0x80200aa4 in device_init () at genhd.c:184 > #12 0x80108a8c in do_initcalls () at init/main.c:676 > #13 0x80108ae4 in do_basic_setup () at init/main.c:760 > #14 0x80108ca0 in init (unused=0x3f) at init/main.c:830 > #15 0x80109654 in kernel_thread (fn=0x80108c90 <init>, arg=0x0, flags=8457984) at process.c:207 --------------------------------- Guennadi Liakhovetski, Ph.D. DSA Daten- und Systemtechnik GmbH Pascalstr. 28 D-52076 Aachen Germany -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
