Bug 1396738

Summary:	mail on NFS mounted mail folder acts erratically and dangerously
Product:	[Fedora] Fedora	Reporter:	Walter Neumann <neumann>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	24	CC:	gansalmon, ichavero, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2016-12-10 14:59:46 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Walter Neumann 2016-11-19 14:08:57 UTC

Description of problem: Mail on NFS mounted mail folder repeatedly closes and reopens the mail folder, sometimes sending text from other emails on outgoing emails. 


Version-Release number of selected component (if applicable): kernels 4.8.7-200.fc24.i686 and 4.8.6-201.fc24.i686


How reproducible: Run alpine. Within a minute the mail folder resets; emails in process are killed and outgoing emails are sometimes sent with text from other  email messages.

Steps to Reproduce: 
1. run alpine
2. write or read emails
3.

Actual results: Within a minute or two the mailfolder resets. Outgoing mail in process is lost or sent with text from other messages. 


Additional info: THis is a kernel 4.8.xx problem. The problem is not there for  kernels 4.7.xxx and earlier

Comment 1 Walter Neumann 2016-11-28 13:25:57 UTC

Still an issue with kernel 4.8.8-200.fc24.i686. Not a problem for kernels 4.7 and earlier.

Comment 2 Walter Neumann 2016-12-10 14:59:46 UTC

Alpine warns this could be a problem. NFS mount should not be used here.