From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Wilck Date: Tue, 24 Jul 2001 12:58:14 +0000 Subject: [Linux-ia64] DAC960 on IA/64 Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org Hi Leonard, I have made a very small step forward in debugging the problems. After reading this message from Linux to the LK mailinglist I suspected that SMP may have something to do with it. So I repeated our test with the stock RedHat UP kernel (2.4.3), and with much less catastrophic results. I got no more hanging processes, no system crash, "just" some data errors that suggest that 18 512-byte blocks in a 2GB file were pointing at a wrong disk area (there were valid bit patterns there, but patterns that should appear elsewhere in the file). This may look like a VFS or ext2-related problem, but similar tests on other controllers have revealed nothing of the kind. Interestingly, the driver also reported no "vendor-specific" or other errors during the test. I cannot exclude 100% that this test went better than the previous tests simply by "luck", but it seems unlikely, because the system survived 12 hours of heavy copy-compare whereas it always showed uninterruptibly sleeping processes or even total crashes after ca. 5 hours with SMP. Hope that helps a bit, regards, Martin -- Martin Wilck FSC EP PS DS1, Paderborn Tel. +49 5251 8 15113