| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 22 Oct 2012 12:46:36 -0700 From: Yinghai Lu <yinghai@...nel.org> To: Jacob Shin <jacob.shin@....com> Cc: Tom Rini <trini@...com>, hpa@...or.com, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "H. Peter Anvin" <hpa@...ux.intel.com>, "stable@...nel.org" <stable@...nel.org> Subject: Re: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on boot On Mon, Oct 22, 2012 at 11:38 AM, Jacob Shin <jacob.shin@....com> wrote: > > Does EFI do this on above 4G memory? All the EFI BIOSes we have in house looked > to be only touching under 4G. I have no idea about it. > >> >> 2. partial page: >> E820 or user could pass memmap that is not page aligned. >> old cold will guarded by max_low_pfn and max_pfn. so the end partial >> page will be trimmed down, and memblock can one use it. >> middle partial page will still get covered by directly mapping, and >> memblock still can use them. >> Now we will not map middle partial page and memblock still try to use it >> we could get panic when accessing those pages. >> >> So I would suggest to just revert that temporary patch at this time, >> and later come out one complete patch for stable kernels. > > Hm okay, I was hoping not, but if it has to be .. It's hpa's call. -- 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/
Powered by blists - more mailing lists