| Summary: | cifs: problem writing files to win2k3 with jumbo frames enabled | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Michal <m.myszko> | ||||
| Component: | kernel | Assignee: | Jeff Layton <jlayton> | ||||
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 6.2 | CC: | agospoda, sprabhu, steved | ||||
| Target Milestone: | rc | ||||||
| Target Release: | 6.2 | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2012-03-22 15:17:28 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Attachments: |
|
||||||
|
Description
Michal
2012-02-23 12:56:29 UTC
Created attachment 565296 [details]
scr
view of coping
This occurs only when MTU is 9000, if it is 1500 everything is ok Interesting. cifs.ko is more or less a "consumer" of the socket layer. It generally doesn't much care what sort of MTU you have. The screenshot shows that attempts to send on the socket are failing with an -EAGAIN error. Speculation: Perhaps the server is shrinking the receive window such that we can't send to it and not opening it back up in a timely fashion? Either way, a binary capture of the traffic between client and server would be interesting. If you need help collecting that, please open a support case with Red Hat so our support people can assist you. No response in No response in almost a month and there's very little info to go on. If you're still seeing this problem, what would probably be best is to open a case with RH support and have them help you gather some more info to help narrow down the cause. |