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Copying files from an external HDD to another USB source (e.g. flashdrive) slows down my computer to a crawl/freezes it. When this occurs I think the copying process is still going on but goes very slowly.
Another problem is that the power of my external HDD goes off once the PC starts booting Arch. I have to manually pull out the cable and plug it in again. But maybe this is unrelated.
I have no idea how to solve this problem.
Below the output of lspci (if it is of any use)
Thanks in advance!
[bart@ArchPC ~]$ lspci
00:00.0 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller (rev a2)
00:01.0 ISA bridge: nVidia Corporation MCP78S [GeForce 8200] LPC Bridge (rev a2)
00:01.1 SMBus: nVidia Corporation MCP78S [GeForce 8200] SMBus (rev a1)
00:01.2 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller (rev a1)
00:01.3 Co-processor: nVidia Corporation MCP78S [GeForce 8200] Co-Processor (rev a2)
00:01.4 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller (rev a1)
00:02.0 USB Controller: nVidia Corporation MCP78S [GeForce 8200] OHCI USB 1.1 Controller (rev a1)
00:02.1 USB Controller: nVidia Corporation MCP78S [GeForce 8200] EHCI USB 2.0 Controller (rev a1)
00:04.0 USB Controller: nVidia Corporation MCP78S [GeForce 8200] OHCI USB 1.1 Controller (rev a1)
00:04.1 USB Controller: nVidia Corporation MCP78S [GeForce 8200] EHCI USB 2.0 Controller (rev a1)
00:06.0 IDE interface: nVidia Corporation MCP78S [GeForce 8200] IDE (rev a1)
00:07.0 Audio device: nVidia Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio (rev a1)
00:08.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1)
00:09.0 IDE interface: nVidia Corporation MCP78S [GeForce 8200] SATA Controller (non-AHCI mode) (rev a2)
00:0b.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express Bridge (rev a1)
00:10.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express Bridge (rev a1)
00:12.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express Bridge (rev a1)
00:13.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1)
00:14.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:06.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev c0)
02:00.0 VGA compatible controller: nVidia Corporation C77 [GeForce 8200] (rev a2)
04:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E Gigabit Ethernet Controller (rev 12)
[bart@ArchPC ~]$
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Perhaps this is normal since you are using USB twice in this transfer so it is doubly slow thereby.
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Its not only an extremely slow file transfer, but it actually makes the system unresponsive. Running GNOME3 btw.
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Sorry to bump this post, someone an idea of what might cause this?
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Have you searched the forums. There are at least 2 other threads on this topic. Maybe you will find an answer in one of them.
There's no such thing as a stupid question, but there sure are a lot of inquisitive idiots !
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https://bbs.archlinux.org/viewtopic.php?id=111575
https://bbs.archlinux.org/viewtopic.php?id=112846
https://bbs.archlinux.org/viewtopic.php?id=123929
https://bbs.archlinux.org/viewtopic.php?id=124191
https://bbs.archlinux.org/viewtopic.php?id=124570
https://bbs.archlinux.org/viewtopic.php?id=125167
https://bugzilla.kernel.org/show_bug.cgi?id=40262
No definite solutions however.
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After trying almost all available kernels and checking everything twice, I finally found a solution that worked wonders for me:
Run as root:
echo 1 > /proc/sys/vm/dirty_ratio && echo "echo 1 > /proc/sys/vm/dirty_ratio" >> /etc/rc.local
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After trying almost all available kernels and checking everything twice, I finally found a solution that worked wonders for me:
Run as root:
echo 1 > /proc/sys/vm/dirty_ratio && echo "echo 1 > /proc/sys/vm/dirty_ratio" >> /etc/rc.local
The problem still persits for me on both the stock Arch kernel and the linux-ck-k10 kernel. I've also experimented with the value 5 and 10 while also setting dirty_background_ratio to 10 and 1 respectively without any luck.
However, Kubuntu installed on another patition runs flawlessly and never hangs when I run a bunch of file copies. Have you tried using ubuntu's 11.04 kernel in Arch?
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