Bug 27712
Summary: | atl1e data corruption (via NFS over TCP) | ||
---|---|---|---|
Product: | Drivers | Reporter: | Pascal de Bruijn (pmjdebruijn) |
Component: | Network | Assignee: | drivers_network (drivers_network) |
Status: | RESOLVED OBSOLETE | ||
Severity: | high | CC: | alan, hannes, qball |
Priority: | P1 | ||
Hardware: | All | ||
OS: | Linux | ||
Kernel Version: | 2.6.38-rc2 | Subsystem: | |
Regression: | No | Bisected commit-id: |
Description
Pascal de Bruijn
2011-01-28 09:47:10 UTC
(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Fri, 28 Jan 2011 09:48:13 GMT bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=27712 > > Summary: atl1e data corruption (via NFS over TCP) > Product: Drivers > Version: 2.5 > Kernel Version: 2.6.38-rc2 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: high > Priority: P1 > Component: Network > AssignedTo: drivers_network@kernel-bugs.osdl.org > ReportedBy: pmjdebruijn@pcode.nl > Regression: No > > > With the following device (very common on ASUS hardware): > > Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller > > With PCI ID: > > 1969-1026-b0-00-1043-14f5 > http://pci-ids.ucw.cz/read/PC/1969/1026 > > We get data corruption when transferring data via NFS over TCP, while data > transfered via NFS over UDP seems to be fine. > > We tested this by md5summing large files (100MB+) over NFS. > > Turning off all offload features via ethool does not help either. However the > RX checksum offload can't be turned off individually, but _seems_ to be > turned > off when the TX checksum offload is turned off. > > As indicated when transferring data via UDP the problem disappears, and the > md5sums are correct again. > > The above would suggestion something is possibly wrong the RX checksum > offload? > > Is there any way to force the RX checksum offload off? > I have the same hardware (onboard, asus motherboard) and I can confirm this. I have also seen this happen on large transfers via SCP. Closing as obsolete, if this is still seen on modern kernels please update |