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From: Al Viro <viro@ZenIV.linux.org.uk>
To: lkp@lists.01.org
Subject: Re: [vfs] BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1191
Date: Thu, 19 Nov 2015 11:39:47 +0000	[thread overview]
Message-ID: <20151119113947.GH22011@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20151119094214.GB18875@wfg-t540p.sh.intel.com>

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On Thu, Nov 19, 2015 at 05:42:14PM +0800, Fengguang Wu wrote:
> Hi Al,
> 
> Here is another bisect result.

Umm...  Looks like bisect hazard - the chunk that should've gone into
ebd0bb376 went into 31d49afa22 instead.  Namely, this
-       struct pid_namespace *ns = dentry->d_sb->s_fs_info;
+       struct pid_namespace *ns = inode->i_sb->s_fs_info;
in proc_self_get_link()...  And similar in proc_thread_self_get_link(),
apparently.

Fixed (by moving these chunks into the previous commit, the final tree is
unchanged) and force-pushed...

      reply	other threads:[~2015-11-19 11:39 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-19  9:41 [vfs] BUG: unable to handle kernel NULL pointer dereference at 00000090 Fengguang Wu
2015-11-19  9:42 ` [vfs] BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1191 Fengguang Wu
2015-11-19 11:39   ` Al Viro [this message]

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