Bug 3475

Summary:	Calling sync on large filesystems when not always necessary
Product:	buildroot	Reporter:	Danny Staple <orionrobots>
Component:	Other	Assignee:	unassigned
Status:	RESOLVED FIXED
Severity:	normal	CC:	buildroot
Priority:	P5
Version:	unspecified
Target Milestone:	---
Hardware:	PC
OS:	Linux
Host:		Target:
Build:

Description Danny Staple 2011-03-11 16:20:22 UTC

When using build root to cross compile for other devices, especially when doing many builds (multiple targets), on a CI system with 10s of gigs of ram and many intermediate targets, then sync is not really desirable here.

The makedevs step makes a call to /bin/sync.

I am suggesting a "--nosync" be introduced so buildroot will not sync the drives then? While of course preserving existing behaviour for the majority that don't find any problems.

Comment 1 Danny Staple 2011-03-11 16:22:15 UTC

For info - this sync is called as a shell out to "/bin/sync" in makedevs.c.


if (system("/bin/sync"))
        bb_error_msg("sync failed, continuing anyway");

Comment 2 Peter Korsgaard 2011-03-11 23:18:27 UTC

I think it makes more sense to simply get rid of the sync. There's no real reason why we would need to sync in the first place.

Comment 3 Peter Korsgaard 2011-03-12 21:29:32 UTC

Removed in git, thanks