From mboxrd@z Thu Jan 1 00:00:00 1970 From: "kyle" Subject: Re: change strip_cache_size freeze the whole raid Date: Mon, 22 Jan 2007 23:18:35 +0800 Message-ID: <00c201c73e38$95dcba70$28df0f3d@kylecea1512a3f> References: <001801c73e14$c3177170$28df0f3d@kylecea1512a3f> <005501c73e33$7d9046d0$28df0f3d@kylecea1512a3f> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: Justin Piszcz Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-raid.ids >> >> > Yes, I noticed this bug too, if you change it too many times or change >> > it >> > at the 'wrong' time, it hangs up when you echo numbr > >> > /proc/stripe_cache_size. >> > >> > Basically don't run it more than once and don't run it at the 'wrong' >> > time >> > and it works. Not sure where the bug lies, but yeah I've seen that on >> > 3 >> > different machines! >> > >> > Justin. >> > >> > >> >> I just change it once, then it freeze. It's hard to get the 'right time' >> >> Actually I tried it several times before. As I remember there was once it >> freezed for around 1 or 2 minutes , then back to normal operation. This >> is the >> first time it completely freezed and I waited after around 10 minutes it >> still >> didn't wake up. >> >> Kyle >> >> - >> To unsubscribe from this list: send the line "unsubscribe linux-raid" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > What kernel version are you using? It normally works the first time for > me, I put it in my startup scripts, as one of the last items. However, if > I change it a few times, it will hang and there is no way to reboot except > via SYSRQ or pressing the reboot button on the machine. > > This seems to be true of 2.6.19.1 and 2.6.19.2, I did not try under > 2.6.20-rc5 because I am tired of hanging my machine :) > > Justin. > It was 2.6.17.8. Now it's 2.6.7.13 but I won't touch it now! It's around 15km from me!