linux-kernel - pstore wierdness on Dell Latitude E6530.

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Message-ID: <9443.1397067600@turing-police.cc.vt.edu>
Date:	Wed, 09 Apr 2014 14:20:00 -0400
From:	Valdis Kletnieks <Valdis.Kletnieks@...edu>
To:	Kees Cook <keescook@...omium.org>, Tony Luck <tony.luck@...el.com>
Cc:	linux-kernel@...r.kernel.org
Subject: pstore wierdness on Dell Latitude E6530.

For some reason, /sys/fs/pstore has 537 files in it, all called 'console-efi',
all having inode number 8021, and all consisting of the same one line:

[/sys/fs/pstore] cat console-efi 
[    1.567734] pci 0000:00:1c.1: PCI bridge to [bus 03]
[/sys/fs/pstore] ls | uniq -c
    537 console-efi
[/sys/fs/pstore] cat console-efi 
[    1.567734] pci 0000:00:1c.1: PCI bridge to [bus 03]
[/sys/fs/pstore] grep . * | uniq -c
    537 console-efi:[    1.567734] pci 0000:00:1c.1: PCI bridge to [bus 03]
[/sys/fs/pstore] ls -li | head
total 0
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi
8021 -r--r--r--. 1 root root 56 Aug 13  2013 console-efi

I can remove one, and then it gets even more weird:

[/sys/fs/pstore]1 rm console-efi 
[/sys/fs/pstore]1 ls | wc
    536     536    6432

Goodie - one less. Let's try again. 'rm c<tab>' completes to console-efi

[/sys/fs/pstore]1 rm console-efi 
rm: cannot remove 'console-efi': No such file or directory
[/sys/fs/pstore] ls | wc
    536     536    6432

[/sys/fs/pstore]1 ls -li console-efi 
ls: cannot access console-efi: No such file or directory

[/sys/fs/pstore] ls -li 2>&1 | uniq -c
    536 ls: cannot access console-efi: No such file or directory
      1 total 0
    536 ? -????????? ? ? ? ?            ? console-efi

Any ideas?




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