Jan Kara <[email protected]> writes: >> It looks like the bug of __getblk_slow(). If requested block was beyond >> end of device, __find_get_block() will find buffer_mapped()'s buffer, >> but block >= end_block is unmapped. So, it can be loop. >> >> The following patch fixes it? If it fix, there are some options to check >> it. >> >> a) Check it like this patch and warn. >> b) (a), but without warn. >> c) Check it in init_page_buffers() and return -EIO or such >> >> Well, anyway, Cc to Jens. >> >> Signed-off-by: OGAWA Hirofumi <[email protected]> > I think Jeff Moyer has sent a similar fix recently. It may even be > already queued in Jens' tree. Jeff?
I haven't heard a peep from Jens (I believe he's been on vacation), so I forwarded the patch along to Linus (but haven't heard anything from him, either). See my email with Subject: [patch] block: fix infinite loop in __getblk_slow https://lkml.org/lkml/2012/6/26/252 Cheers, Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
