Most recent kernel where this bug did not occur: 2.6.11 Distribution: gentoo-x86, gentoo-amd64, slackware-10.1 Hardware Environment: asus motherboard with p4, epox with celeron, ati with amd tuiron, P4Cel-2.1 If lspci dump or anything else is needed I'll attach it, but this seems to be not hardware related bug. Software Environment: Problem Description: When mounting usb-flash with kernel later 2.6.11 with sync option I have good read speed(~8mb/sec) but write speed is about 8Kb/s. If mount flash with async option copy big file to it and do # sync It flushes buffers as fast as 5Mb/s... With 2.6.11 kernel I can't reproduce this problem speed is about 3-5Mb/s. I saw this problem on my 3 PCs and I know at least 3 friends that falls into this problem. My flash is mounted with following flags: /dev/sda1 on /media/RedFlash type vfat (rw,nosuid,nodev,sync,noatime,utf8) /dev/sda2 on /media/secrets type ext3 (rw,nosuid,nodev,sync,noatime) Steps to reproduce: mount usb flash with sync option and try to copy files to it..speed should be ~few kbytes per second (
Yes. I have this bag too. % lspci 00:1d.0 USB Controller: Intel Corp. 82801DB (ICH4) USB UHCI #1 (rev 02) 00:1d.1 USB Controller: Intel Corp. 82801DB (ICH4) USB UHCI #2 (rev 02) 00:1d.2 USB Controller: Intel Corp. 82801DB (ICH4) USB UHCI #3 (rev 02) 00:1d.7 USB Controller: Intel Corp. 82801DB (ICH4) USB2 EHCI Controller (rev 02) Hardware: ASUStek P4B533 with P4Cel-2.1
*** This bug has been marked as a duplicate of 4882 ***