Hi all, I'm trying to figure out the reason of my laptop problem. I beg your help to find the right way to debug it (I mean, I don't want to flood the mailing list with useless details, and so on). Well, let's try... Hardware: Toshiba Satellite P20 (P4-3200 MHz, 512MB RAM) [1] Software: Debian Unstable GCC: 3.4.5 [2] Memtest86+: v.1.60 (stress tools, CPU/RAM and so on, are all happy) Problem: with kernel <=2.6.10 everything is all right... but with any kernel released after 2.6.10 (pre, rc, stable, mm, and so on), I've got this:
hda: dma_timer_expiry: dma status == 0x21 hda: DMA timeout error hda: dma timeout error: status=0xd0 { Busy } ide: failed opcode was: unknown hda: DMA disabled ide0: reset: success Losing too many ticks! TSC cannot be used as a timesource. Possible reasons for this are: You're running with Speedstep, You don't have DMA enabled for your hard disk (see hdparm), Incorrect TSC synchronization on an SMP system (see dmesg). Falling back to a sane timesource now. hda: dma_timer_expiry: dma status == 0x21 hda: DMA timeout error hda: dma timeout error: status=0xd0 { Busy } ide: failed opcode was: unknown hda: DMA disabled ide0: reset: success after a stress activity of the hd (I can achieve this by unrar big files, or using 'iozone -A'). I wanna make it clear: with 2.6.10, HD can work for days without rest/poweroff/reboot. It's enough to switch to another kernel >2.6.10 to have the problem. With some kernel, system simply freeze, with other it survive and gives the DMA notice. Anyway, when it happens, I've got a big filesystem corruption (I tried both ext2 and ext3). It happen quickly if I do also something like this: cd /proc/sys/vm echo 100 > dirty_background_ratio echo 1000000 > dirty_expire_centisecs echo 100 > dirty_ratio echo 1000000 > dirty_writeback_centisecs It could be useful to apply all 2.6.11 patch to 2.6.10 *but* the IDE layer? Or, which are really useful information about it? Thanks a lot for your time and work, Andrea --- [1] Sorry, I didn't find an official homepage. anyway: (lspci) 0000:00:00.0 Host bridge: Intel Corp. 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02) 0000:00:01.0 PCI bridge: Intel Corp. 82865G/PE/P PCI to AGP Controller (rev 02) 0000:00:1d.0 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #1 (rev 02) 0000:00:1d.1 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #2 (rev 02) 0000:00:1d.2 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #3 (rev 02) 0000:00:1d.3 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #4 (rev 02) 0000:00:1d.7 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02) 0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev c2) 0000:00:1f.0 ISA bridge: Intel Corp. 82801EB/ER (ICH5/ICH5R) LPC Bridge (rev 02) 0000:00:1f.1 IDE interface: Intel Corp. 82801EB/ER (ICH5/ICH5R) Ultra ATA 100 Storage Controller (rev 02) 0000:00:1f.3 SMBus: Intel Corp. 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02) 0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02) 0000:00:1f.6 Modem: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Modem Controller (rev 02) 0000:01:00.0 VGA compatible controller: nVidia Corporation NV34M [GeForce FX Go 5200] (rev a1) 0000:02:00.0 FireWire (IEEE 1394): Texas Instruments TSB43AB21 IEEE-1394a-2000 Controller (PHY/Link) 0000:02:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) 0000:02:04.0 CardBus bridge: Toshiba America Info Systems ToPIC95 PCI to Cardbus Bridge with ZV Support (rev 32) 0000:02:04.1 CardBus bridge: Toshiba America Info Systems ToPIC95 PCI to Cardbus Bridge with ZV Support (rev 32) 0000:02:06.0 System peripheral: Toshiba America Info Systems SD TypA Controller (rev 03) (dmidecode) Vendor: TOSHIBA Version: V1.20 Release Date: 06/24/2003 Address: 0xE4DF0 Runtime Size: 111120 bytes ROM Size: 512 kB Handle 0x0001 DMI type 1, 25 bytes. System Information Manufacturer: TOSHIBA Product Name: Satellite P20 Processor Information Socket Designation: NWD Type: Central Processor Family: Pentium 4 Manufacturer: Intel ID: 29 0F 00 00 FF FB EB BF Signature: Type 0, Family 15, Model 2, Stepping 9 DMI type 6, 12 bytes. Memory Module Information Socket Designation: M1 Bank Connections: 0 1 Current Speed: Unknown Type: DIMM SDRAM Installed Size: 256 MB (Double-bank Connection) Enabled Size: 256 MB (Double-bank Connection) Error Status: OK DMI type 6, 12 bytes. Memory Module Information Socket Designation: M2 Bank Connections: 4 5 Current Speed: Unknown Type: DIMM SDRAM Installed Size: 256 MB (Double-bank Connection) Enabled Size: 256 MB (Double-bank Connection) Error Status: OK [2] Reading specs from /usr/lib/gcc/i486-linux-gnu/3.4.5/specs Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr --libexecdir=/usr/lib --with-gxx-include-dir=/usr/include/c++/3.4 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --program-suffix=-3.4 --enable-__cxa_atexit --enable-libstdcxx-allocator=mt --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk --disable-werror i486-linux-gnu Thread model: posix gcc version 3.4.5 20050706 (prerelease) (Debian 3.4.4-5) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/