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Date: Thu, 13 Aug 2015 11:25:02 -0700 From: Andy Lutomirski <luto@...capital.net> To: Stas Sergeev <stsp@...t.ru> Cc: Ingo Molnar <mingo@...nel.org>, X86 ML <x86@...nel.org>, Linux kernel <linux-kernel@...r.kernel.org>, Linus Torvalds <torvalds@...ux-foundation.org>, "H. Peter Anvin" <hpa@...or.com>, Thomas Gleixner <tglx@...utronix.de>, Brian Gerst <brgerst@...il.com>, Borislav Petkov <bp@...en8.de>, Stas Sergeev <stsp@...rs.sourceforge.net> Subject: Re: [regression] x86/signal/64: Fix SS handling for signals delivered to 64-bit programs breaks dosemu On Thu, Aug 13, 2015 at 11:19 AM, Stas Sergeev <stsp@...t.ru> wrote: > It is more about selecting the right field for such a flag. > You can select the right field now, and introduce some flag > to it, like SIG_SAVE_SS or whatever. This will fix a regression. > Then, when the TLS time will code, you'll just add SIG_SAVE_FS > flag to the same field, so that they can be ORed. Oh. I think the field is obvious: uc_flags. I also thing that all of the saving should happen automatically, since I still don't see how anything will break if the kernel starts saving more things. It's the restore part that's problematic. --Andy -- Andy Lutomirski AMA Capital Management, LLC -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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