Messages in this thread | | | From | hari <> | Subject | Re: Heavy disk IO stalls ftp/http downloads | Date | Sat, 24 Nov 2001 00:12:41 +0000 |
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On Fri, 23 Nov 2001 11:32, Samium Gromoff wrote: > does hdparm -u1 fixes the problem? > -u1 == unmasq irq during its handling > the problem is that serial port need its interrupt to be served with > minimal latency, and the drives makes that impossible, unless irqs are > unmasked... Hello Samium,
Thanks a lot for your response.
Yes, I have -u1 support enabled for both the hard drives (in fact it is /sbin/hdparm -m16 -c3 -u1 -X66 -d1 -W1 /dev/hda and /dev/hdc). But, unfortunately it does not fix the problem.
Here is the 'hdparm' output from the hard drives: /dev/hda: multcount = 16 (on) I/O support = 3 (32-bit w/sync) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 1247/255/63, sectors = 20044080, start = 0
/dev/hdc: multcount = 16 (on) I/O support = 3 (32-bit w/sync) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 1240/255/63, sectors = 19931184, start = 0 -- Hari. harisri@bigpond.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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