Bug 211209

Summary:	sendfile to STDOUT fails
Product:	File System	Reporter:	Marcin Deranek (marcin.deranek)
Component:	Other	Assignee:	fs_other
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	nuxi
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	5.10.7	Subsystem:
Regression:	Yes	Bisected commit-id:
Attachments:	Test code

Description Marcin Deranek 2021-01-15 12:19:32 UTC

Created attachment 294645 [details]
Test code

Behavior is very similar to https://bugzilla.kernel.org/show_bug.cgi?id=209971 although this time STDOUT is used as an output (see attached sample code). On Linux 5.9.16 this succeeds and prints content of /proc/self/mountinfo file, however using Linux 5.10.7 I get 'Failed to copy "/proc/self/mountinfo"'.

Comment 1 Marcin Deranek 2021-01-28 11:44:43 UTC

Looks like problem is already addressed in 5.10.11. Thank you.