On Thu, 1 Jul 2010 11:57:37 GMT bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=16321 > > Summary: os unresponsive during buffered I/O > Product: IO/Storage > Version: 2.5 > Kernel Version: 2.6.34 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Block Layer > AssignedTo: axboe@xxxxxxxxx > ReportedBy: rrs@xxxxxxxxxxxxxx > Regression: No > > > I have been running these tests on my laptop running the 2.6.34 Debian kernel. > When doing buffered I/O, the OS completely stalls to any interactivity. I > cannot switch console tabs in my Desktop Environment and the mouse pointer does > not move. > > Eventually, I/O completes and every thing resumes to normal. There is no OOM > seen during the I/O operation. > If doing direct I/O, interactivity does not get penalized. > 1... 2... 3... FUCK!!! We've been trying to fix this stuff for ten years. Apparently, without success. Do we suck, or what? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>