From mboxrd@z Thu Jan 1 00:00:00 1970 From: Meelis Roos Subject: mmap problem in localedef Date: Mon, 5 Dec 2016 13:36:17 +0200 (EET) Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII To: linux-parisc@vger.kernel.org Return-path: List-ID: List-Id: linux-parisc.vger.kernel.org I noticed that locale-gen fails to work on my gentoo. Before reporting to getnoo I tried to understand whether there is something specific to parisc and here is the relevant part of strace from localedef invocation: 1761 open("//usr/lib/locale/locale-archive.yvHI9a", O_RDWR|O_CREAT|O_EXCL, 0600) = 3 1761 write(3, "\336\2\1\t\0\0\0\0\0\0\0008\0\0\0\0\0\0\3\213\0\0*\274\0\0\0\0\0\0\35L"..., 56) = 56 1761 ftruncate64(3, 103860) = 0 1761 mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0xd79bd000 1761 mmap2(0xd7c00000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument) 1761 unlink("//usr/lib/locale/locale-archive.yvHI9a") = 0 1761 write(2, "cannot map archive header", 25) = 25 1761 write(2, ": Invalid argument", 18) = 18 1761 write(2, "\n", 1) = 1 1761 exit_group(1) = ? Do I read it correctly that it creates PROT_NONE mapping on file opened O_RDWR, then tries to create a PROT_READ|PROT_WRITE mapping from the same file at fixed location and fails? Why should it fail - because the fixed location is not suitable? -- Meelis Roos (mroos@linux.ee)