Bug#504391: Please enable CONFIG_MMC_UNSAFE_RESUME
On Tue, Nov 10, 2009 at 02:51:52PM +0000, Ben Hutchings wrote:
> On Tue, Nov 10, 2009 at 12:51:27PM +0100, Wouter van Heyst wrote:
> > I second the request for turning CONFIG_MMC_UNSAFE_RESUME on,
> > for me with /home on a SD card fixed firmly in it's slot, having it
> > turned on is the only safe option.
> > Off: filesystem corruption after suspend/resume
> > On: everything works fine
> And for the majority of SD/MMC card users, the choice is:
> off: everything works fine
> on: filesystem corruption after card change while system is off
> I don't think we should change the default to suit the minority of users
> with hardware that abuses SD/MMC for fixed storage devices.
Ah. I had thought that switching a card while the system is off would be
far more rare. I see my view is limited to netbooks, quite disjunct from, say,
> However this probably should be a module option rather than a compile-time
Yes, rebuilding kernels myself every time there is a security update has
The impact of CONFIG_MMC_UNSAFE_RESUME seems to be contstrained to let
#define mmc_suspend NULL
#define mmc_resume NULL
#define mmc_sd_suspend NULL
#define mmc_sd_resume NULL
if it's not defined, and with implementations otherwise, filling the
mmc_ops and mmc_sd_ops structs. After that my kernel fu is too weak.
What needs to be done to get this to be a module option?
Wouter van Heyst
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