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* linux-next: build failure after merge of the ecryptfs tree
@ 2019-05-14  0:15 Stephen Rothwell
  2019-05-14  0:40 ` Masahiro Yamada
  0 siblings, 1 reply; 22+ messages in thread
From: Stephen Rothwell @ 2019-05-14  0:15 UTC (permalink / raw)
  To: Masahiro Yamada
  Cc: Tyler Hicks, Linux Next Mailing List, Linux Kernel Mailing List

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Hi all,

I don't know why this suddenly appeared after mergeing the ecryptfs tree
since nothin has changed in that tree for some time (and nothing in that
tree seems relevant).

After merging the ecryptfs tree, today's linux-next build (x86_64
allmodconfig) failed like this:

scripts/Makefile.modpost:112: target '.tmp_versions/asix.mod' doesn't match the target pattern
scripts/Makefile.modpost:113: warning: overriding recipe for target '.tmp_versions/asix.mod'
scripts/Makefile.modpost:100: warning: ignoring old recipe for target '.tmp_versions/asix.mod'
scripts/Makefile.modpost:127: target '.tmp_versions/asix.mod' doesn't match the target pattern
scripts/Makefile.modpost:128: warning: overriding recipe for target '.tmp_versions/asix.mod'
scripts/Makefile.modpost:113: warning: ignoring old recipe for target '.tmp_versions/asix.mod'
make[2]: Circular .tmp_versions/asix.mod <- __modpost dependency dropped.
Binary file .tmp_versions/asix.mod matches: No such file or directory
make[2]: *** [scripts/Makefile.modpost:91: __modpost] Error 1
make[1]: *** [Makefile:1290: modules] Error 2

The only clue I can see is that asix.o gets built in two separate
directories (drivers/net/{phy,usb}).

I have the following files in the object directory:

./.tmp_versions/asix.mod
./drivers/net/usb/asix.ko
./drivers/net/usb/asix.mod.o
./drivers/net/usb/asix.o
./drivers/net/usb/asix_common.o
./drivers/net/usb/asix_devices.o
./drivers/net/usb/.asix.ko.cmd
./drivers/net/usb/.asix.mod.o.cmd
./drivers/net/usb/.asix.o.cmd
./drivers/net/usb/asix.mod.c
./drivers/net/usb/.asix_common.o.cmd
./drivers/net/usb/.asix_devices.o.cmd
./drivers/net/phy/asix.ko
./drivers/net/phy/asix.o
./drivers/net/phy/.asix.ko.cmd
./drivers/net/phy/.asix.mod.o.cmd
./drivers/net/phy/asix.mod.o
./drivers/net/phy/asix.mod.c
./drivers/net/phy/.asix.o.cmd

./.tmp_versions/asix.mod

Looks like this:

------------------------------------------
drivers/net/phy/asix.ko
drivers/net/phy/asix.o


------------------------------------------

What you can't see above are the 256 NUL bytes at the end of the file
(followed by a NL).

This is from a -j 80 build.  Surely there is a race condition here if the
file in .tmp_versions is only named for the base name of the module and
we have 2 modules with the same base name.

I removed that file and redid the build and it succeeded.

Mind you, I have no itdea why this file was begin rebuilt, the merge
only touched these files:

fs/ecryptfs/crypto.c
fs/ecryptfs/keystore.c

Puzzled ... :-(

-- 
Cheers,
Stephen Rothwell

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^ permalink raw reply	[flat|nested] 22+ messages in thread

end of thread, other threads:[~2019-06-09 20:24 UTC | newest]

Thread overview: 22+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-05-14  0:15 linux-next: build failure after merge of the ecryptfs tree Stephen Rothwell
2019-05-14  0:40 ` Masahiro Yamada
2019-05-14  0:56   ` Stephen Rothwell
2019-05-14  1:22     ` Michael Schmitz
2019-05-15  4:28       ` Michael Schmitz
2019-05-17 20:25     ` [PATCH 0/3] resolve module name conflict for asix PHY and USB modules Michael Schmitz
2019-05-17 21:20       ` Andrew Lunn
2019-05-18  1:17         ` Michael Schmitz
2019-05-17 20:25     ` [PATCH 1/3] net: phy: new ax88796b.c Asix Electronics PHY driver Michael Schmitz
2019-05-17 20:25     ` [PATCH 2/3] net: 8390: switch X-Surf 100 driver to use ax88796b PHY Michael Schmitz
2019-05-17 20:25     ` [PATCH 3/3] net: phy: remove old Asix Electronics PHY driver Michael Schmitz
2019-05-18  1:14     ` [PATCH v2] net: phy: rename " Michael Schmitz
2019-05-18 14:20       ` Andrew Lunn
2019-05-18 17:48         ` Michael Schmitz
2019-05-18 18:04           ` Andrew Lunn
2019-06-07  5:37     ` [PATCH net v3] " Michael Schmitz
2019-06-07 13:00       ` Andrew Lunn
2019-06-08  1:54         ` Michael Schmitz
2019-06-09 20:24       ` David Miller
2019-05-14  1:03   ` linux-next: build failure after merge of the ecryptfs tree Stephen Rothwell
2019-05-14  4:16     ` Masahiro Yamada
2019-05-14  4:49       ` Stephen Rothwell

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