linux-kernel - weird and wrong directory entries

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Message-ID: <20150123004138.GA2626@swordfish>
Date:	Fri, 23 Jan 2015 09:42:21 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	Al Viro <viro@...IV.linux.org.uk>, Paul Moore <pmoore@...hat.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: weird and wrong directory entries

Hello gents,

I observe this sick behaviour for the past few days. (sorry, some lines are
over 80 symbols). all of the things above are happening during kernel compilation.
attached .config.


/* I shortened real kernel version strings in this email. e.g.
 * kernel-3.19.0-rc5-dbg-00134-gf8de05c-dirty --> 3.19.0-rc5-dbg-00134, etc.
 */

it starts with this

rm: fts_read failed: No such file or directory
/usr/bin/fakeroot: line 181: 26435 User defined signal 1   FAKEROOTKEY=$FAKEROOTKEY LD_LIBRARY_PATH="$PATHS" LD_PRELOAD="$LIB" "$@"

rm: cannot remove ‘pkg/3.19.0-rc5-dbg-00119/usr/lib/modules/3.19.0-rc5-dbg-00119/kernel/drivers/usb//lib64/libnvcuvid.so’: Permission denied

"note //lib64". cd to that dir, ls -la


~/media/dev/linux/pkg/3.19.0-rc5-dbg-00119/usr/lib/modules/3.19.0-rc5-dbg-00119/kernel/drivers/usb$ ls -la
total 80
drwxr-xr-x   3 ss   ss    4096 Jan 22 10:08 .
drwxr-xr-x  12 ss   ss    4096 Jan 22 10:08 ..
drwxr-xr-x 101 root root 69632 Jan 22 09:15 /lib64/


note "/lib64//"



or it can be "/usr//"

total 4
drwxr-xr-x 8 arch 1000  192 Jan 20 11:12 ./
drwxr-xr-x 4 arch 1000   96 Jan 20 11:12 ../
drwxr-xr-x 3 arch 1000   72 Jan 20 11:11 block/
drwxr-xr-x 2 arch 1000  112 Jan 20 11:11 hwmon/
drwxr-xr-x 4 arch 1000  160 Jan 20 11:11 input/
drwxr-xr-x 2 arch 1000  112 Jan 20 11:11 parport/
drwxr-xr-x 8 root root 4096 Jan  1 09:52 /usr//
drwxr-xr-x 2 arch 1000  128 Jan 20 11:11 watchdog/



or even:

~/_next/pkg/3.19.0-rc5-next-20150120/usr/lib/modules/3.19.0-rc5-next-20150120/kernel$ ll
ls: cannot access /usr/bi: No such file or directory
total 0
?????????? ? ? ? ?            ? /usr/bi


that "/usr/bi" is /usr/bin I suspect


or:

~/media/dev/pkg/3.19.0-rc5-dbg-00134/lib/modules/3.19.0-rc5-dbg-00134/kernel/drivers/net$ ll
ls: cannot access /ho: No such file or directory
total 12
d????????? ? ?  ?     ?            ? /ho
drwxr-xr-x 3 ss ss 4096 Jan 23 08:44 ethernet
-rw-r--r-- 1 ss ss 3195 Jan 23 08:44 mii.ko.gz
drwxr-xr-x 2 ss ss 4096 Jan 23 08:44 usb


that "/ho" is /home



happens both on reiserfs and ext4, both on current linus's tree and linux-next.
no doubt, an attempt to rm -fr pkg/   kills   /usr/, etc.


I'm puzzled. any thoughts?


	-ss

View attachment ".config" of type "text/plain" (93413 bytes)