* [Buildroot] [Bug 11261] New: ccache using wrong cached objects
@ 2018-08-29 13:14 bugzilla at busybox.net
2018-08-29 20:10 ` [Buildroot] [Bug 11261] " bugzilla at busybox.net
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: bugzilla at busybox.net @ 2018-08-29 13:14 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=11261
Bug ID: 11261
Summary: ccache using wrong cached objects
Product: buildroot
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: critical
Priority: P5
Component: Other
Assignee: arnout at mind.be
Reporter: david.degrave at mind.be
CC: buildroot at uclibc.org
Target Milestone: ---
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* [Buildroot] [Bug 11261] ccache using wrong cached objects
2018-08-29 13:14 [Buildroot] [Bug 11261] New: ccache using wrong cached objects bugzilla at busybox.net
@ 2018-08-29 20:10 ` bugzilla at busybox.net
2018-08-29 23:05 ` bugzilla at busybox.net
2018-09-03 22:47 ` bugzilla at busybox.net
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla at busybox.net @ 2018-08-29 20:10 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=11261
--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
There is no description in this bug. Something went wrong when submitting the
bug ?
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* [Buildroot] [Bug 11261] ccache using wrong cached objects
2018-08-29 13:14 [Buildroot] [Bug 11261] New: ccache using wrong cached objects bugzilla at busybox.net
2018-08-29 20:10 ` [Buildroot] [Bug 11261] " bugzilla at busybox.net
@ 2018-08-29 23:05 ` bugzilla at busybox.net
2018-09-03 22:47 ` bugzilla at busybox.net
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla at busybox.net @ 2018-08-29 23:05 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=11261
--- Comment #2 from David De Grave <david.degrave@mind.be> ---
(In reply to Thomas Petazzoni from comment #1)
Hi Thomas, no, I discovered a problem while building the linux kernel and
finally found with the help of Arnout from where came the problem. It's
something with ccache and the way buildroot deal with it.
So, he asked me to fill an empty bugzilla report for him to remember (I guess).
He will fills all the details himself later... Sorry.
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* [Buildroot] [Bug 11261] ccache using wrong cached objects
2018-08-29 13:14 [Buildroot] [Bug 11261] New: ccache using wrong cached objects bugzilla at busybox.net
2018-08-29 20:10 ` [Buildroot] [Bug 11261] " bugzilla at busybox.net
2018-08-29 23:05 ` bugzilla at busybox.net
@ 2018-09-03 22:47 ` bugzilla at busybox.net
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla at busybox.net @ 2018-09-03 22:47 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=11261
Arnout Vandecappelle <arnout@mind.be> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |WORKSFORME
--- Comment #3 from Arnout Vandecappelle <arnout@mind.be> ---
Unfortunately, I was not able to reproduce the issue. We wiped the ccache and
that solved the problem. I thought that I knew the cause (and thus would be
able to reproduce), but apparently I didn't...
The issue was detected while David investigated the libfdt.h issue that was
ultimately fixed by replacing -I$(HOST_DIR)/include with -isystem
$(HOST_DIR)/include. Before that, he had developed a patch for the kernel that
would fix it by changing the libfdt.h in the kernel to match the one in dtc
itself. On one build machine, that patch worked perfectly fine; on another one,
it apparently had no effect - until the ccache was removed.
In retrospect, it may be possible that this was caused by ccache installed on
the host (so not our own ccache). But even with that added in the mix I
couldn't reproduce.
I also thought at the time that I understood what was going wrong (I thought it
was due to CCACHE_BASEDIR), but I've investigated that option further and it
was a dead end.
So, with nothing more to go on, I'm closing this as WORKSFORME. Pity, because
unreliable ccache is really painful.
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end of thread, other threads:[~2018-09-03 22:47 UTC | newest]
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