From: greg@kroah.com (Greg KH)
To: kernelnewbies@lists.kernelnewbies.org
Subject: percolating ERESTARTSYS beyond PCI subsystem
Date: Sat, 18 Apr 2015 20:58:25 +0200 [thread overview]
Message-ID: <20150418185825.GD30508@kroah.com> (raw)
In-Reply-To: <20150418114057.GA2961@debian>
On Sat, Apr 18, 2015 at 01:40:57PM +0200, Milton Krutt wrote:
> Hi. The scenario is a PCI driver on a kernel 3.19.2:
>
> is it possible, in case pending_signal(current) is true, to return -ERESTARTSYS
> to insmod process, in order to get it restart (as expectable)?
>
> After some attempts (with pending_signal(current) being true), it seems that -ERESTARTSYS
> is caught by the "pci layer" that complains saying something like "probing failed ..
> unexpectedly returns -512" and nothing is restarted as expected.
What is the exact error message?
insmod should never return ERESTARTSYS unless some driver is doing
something really odd/broken. What driver are you trying to load that
does this?
> Does insmod disables it explicitly? If so, how to get a similar "restart-behaviour"?
It doesn't disable it, it's just that nothing on that syscall path
should be returning that value, as it doesn't make sense.
thanks,
greg k-h
next prev parent reply other threads:[~2015-04-18 18:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-18 11:40 percolating ERESTARTSYS beyond PCI subsystem Milton Krutt
2015-04-18 18:58 ` Greg KH [this message]
2015-04-19 17:14 ` Milton Krutt
2015-04-19 19:30 ` Greg KH
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