Hi, There have been no reply in two weeks. Does it mean that this is the wrong mailing list for this bug? Or that there is no interest in fixing it? Thanks, Maxim On Mon, Dec 26, 2011 at 04:18, Maxim Kammerer <mk@xxxxxx> wrote: > 1. On 32-bit x86, memtest=n tests only LOWMEM memory (~ 895 MiB), > HIGHMEM is ignored > > 2. On 3.0.4-hardened-r5, HIGHMEM memory (HIGHMEM64G in my tests) is > apparently ignored during memtest. Looking at arch/x86/mm/memtest.c, > no special mapping is performed (kmap/kunmap?), so it seems that at > most ~895 MiB can be tested in 32-bit x86 kernels. This might not > appear like an important issue (as there are other memory testing > tools available), but memtest is extremely useful for anti-forensic > memory wiping on shutdown/reboot in security-oriented distributions > like Liberté Linux and Tails, and there is no other good substitute. > See, for instance, some background in Debian bug > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=646361. > > 3. Keywords: memtest, highmem, mm, security > > 4. Kernel version: 3.0.4-hardened-r5 (Gentoo) x86 32-bit with PAE -- Maxim Kammerer Liberté Linux (discussion / support: http://dee.su/liberte-contribute) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href