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Message-ID: <47955018.7000901@gmail.com> Date: Tue, 22 Jan 2008 11:08:24 +0900 From: Tejun Heo <htejun@...il.com> To: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> CC: Alan Cox <alan@...rguk.ukuu.org.uk>, Andrew Morton <akpm@...ux-foundation.org>, Georgi Chulkov <g.chulkov@...obs-university.de>, linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org, Mark Lord <liml@....ca> Subject: Re: ATA device reset, shoud I be concerned? Tejun Heo wrote: > Bartlomiej Zolnierkiewicz wrote: >> On Monday 21 January 2008, Tejun Heo wrote: >> >> [...] >> >>>> Old IDE says it works for PATA. For SATA I can see it might need more >>>> care and you might simply not be able to get the info. >>> Old IDE often locks up the machine hard after timeouts. I'm all for >> Could you point me to some bugreports? >> >> I would like to know more about hosts/conditions for which it happens. > > It's jmicron and all on-board jmicrons I have show the same problem. > Connect harddrrive to the controller and drive it via jmicron, hot plug > unplug SATA drives continuously, after a while, jmicron says it lost > interrupt and the machine locks up hard. BTW, those hot plug/unplugs don't have any direct relationship with the JMB controller. It's some interference or power issue, I guess. Hot plugging unrelated drives somehow locks up the jmicron driver. :-( -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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