Re: 3.16.2 also contains bug read from uninitialized memory fs/dcache.c:2440

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On Sat, Sep 20, 2014 at 03:20:22PM +0200, Lampshade wrote:
> 
> 3.16.3 also contains this bug. This time it is triggered by line 2439
> bug id 74321 at kernel's bugzilla
> 
> [  108.490143] random: nonblocking pool is initialized
> [  115.938157] WARNING: kmemcheck: Caught 64-bit read from unallocated memory (ffff880099c991c8)
> [  115.939549] 88004000070000000000000000000000d057915e0188ffffc05cc9990088ffff4c1fc96f09000000b891c9990088ffff38409e990088ffff71756575652e62696e00ffffffffffffffffffffffffffffffffffffffffff0003000000ffffffff00406181ffffffff00f458590188ffffffffffffffffffff0000000000000000
> [  115.943020]  i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i a a a a a a a a a a a a a a a i i i i i a a a a i i i i i i i i i i i i i i i i a a a a a a a a i i i i i i i i
> [  115.946647]                                                                                                                                                  ^
> [  115.948244] RIP: 0010:[<ffffffff810e1c72>]  [<ffffffff810e1c72>] switch_names+0xb2/0xe0

Looks like a false-positive, try asking the kmemcheck developers about
this.

greg k-h
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