On Mon, 6 Jan 2014, Ben Hutchings wrote: > On Sat, 2014-01-04 at 05:44 +0800, jidanni@xxxxxxxxxxx wrote: > > >>>>> "BH" == Ben Hutchings <ben@xxxxxxxxxxxxxxx> writes: > > BH> And what were those error messages? > > BH> Which USB devices are you using (this is probably disk or network > > BH> related)? > > > > I had done an aptitude update on writing onto > > # fdisk -l > > Disk /dev/sdg: 3867 MB, 3867148288 bytes > > OK, the important thing is it's usb-storage. > > > 181 heads, 32 sectors/track, 1304 cylinders, total 7553024 sectors > > Units = sectors of 1 * 512 = 512 bytes > > Sector size (logical/physical): 512 bytes / 512 bytes > > I/O size (minimum/optimal): 512 bytes / 512 bytes > > Disk identifier: 0xc3072e18 > > > > # mount > > Device Boot Start End Blocks Id System > > /dev/sdg1 32 868799 434384 83 Linux > > /dev/sdg2 868800 7553023 3342112 83 Linux > > > > /dev/sdg2 on /var/cache/apt/archives type ext3 (rw,noatime,errors=remount-ro,data=ordered) > > /dev/sdg1 on /var/lib/apt/lists type ext3 (rw,noatime,errors=remount-ro,data=ordered) > > > > # cat /var/log/syslog > > > > Jan 1 06:57:38 jidanni5 ntpd[2822]: Listen normally on 5 lo ::1 UDP 123 > > Jan 1 06:57:38 jidanni5 ntpd[2822]: Listen normally on 6 eth0 fe80::2289:84ff:fe28:ad9 UDP 123 > > Jan 1 06:57:38 jidanni5 ntpd[2822]: peers refreshed > > Jan 1 06:57:38 jidanni5 ntpd[2822]: Listening on routing socket on fd #23 for interface updates > > Jan 1 07:04:49 jidanni5 kernel: [ 559.624680] xhci_hcd 0000:00:14.0: Too many fragments 79, max 63 > > Jan 1 07:04:49 jidanni5 kernel: [ 559.624695] xhci_hcd 0000:00:14.0: Too many fragments 79, max 63 > > Jan 1 07:04:49 jidanni5 kernel: [ 559.624704] xhci_hcd 0000:00:14.0: Too many fragments 79, max 63 > > > > 100000 lines later... oops I mean an actual MILLION lines later > > Assuming my fix for the repetition is correct, the remaining problem is > why usb-storage is generating such large/fragmented urbs. usb-storage doesn't generate large or fragmented anything. It merely passes on the scatter-gather information it gets from the block layer. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
