linux-ext4 - Re: [sparc64] sigbus in e2fsck

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Date:   Tue, 30 Aug 2016 15:16:44 -0400
From:   Theodore Ts'o <tytso@....edu>
To:     Anatoly Pugachev <matorola@...il.com>
Cc:     linux-ext4@...r.kernel.org,
        debian-sparc <debian-sparc@...ts.debian.org>
Subject: Re: [sparc64] sigbus in e2fsck

On Tue, Aug 30, 2016 at 06:12:39PM +0300, Anatoly Pugachev wrote:
> 
> (gdb) p bh->b_data
> $1 = "\300;9\230\000\000\000\005\000\000\253\204\000\000\000\070\000\000\000\000\000\000$\022\000\000\000\000\000\000$<\000\000\000\000\000\000$\270\000\000\000\000\000\000$]\000\000\000\000\000\000$\024",
> '\000' <repeats 967 times>
> (gdb) p offset
> $2 = 16
> (gdb) p *bh->b_data
> $3 = -64 '\300'
> (gdb) p *(bh->b_data+offset)
> $6 = 0 '\000'

Can you give us "p &bh->b_data" (so we can get the starting address of
b_data to make sure it's aligned) and "p offset" (so we can check and
make sure offset is sane)?

Thanks,

					- Ted


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