Your message dated Sat, 01 Dec 2018 02:45:29 +0000 with message-id <[email protected]> and subject line Bug#893863: Removed package(s) from unstable has caused the Debian Bug report #605132, regarding libwebkit-1.0-2: don't crash when WX mmap() is denied to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 605132: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=605132 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: libwebkit-1.0-2 Version: 1.2.5-2.1 Severity: normal Hi, I'm using a grsec-enabled kernel with PaX memory protection, which by default deny mmap()ing with write and exec protection. This leads to problems in webkit-based applications (GtkLauncher, midori, epiphany, rhythmbox...) which crash when trying to use javascript engine because the JIT js compiler needs to execute stuff it just wrote in memory (that's the whole point of JIT). The segfault is usually at: #0 0x0000692f95f8edf4 in JSC::ExecutablePool::systemAlloc (n=16384) at ../JavaScriptCore/jit/ExecutableAllocatorPosix.cpp:49 the code beeing: ExecutablePool::Allocation ExecutablePool::systemAlloc(size_t n) { void* allocation = mmap(NULL, n, INITIAL_PROTECTION_FLAGS, MAP_PRIVATE | MAP_ANON, VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY, 0); if (allocation == MAP_FAILED) CRASH(); ExecutablePool::Allocation alloc = { reinterpret_cast<char*>(allocation), n }; return alloc; } INITIAL_PROTECTION_FLAGS is #if ENABLE(ASSEMBLER_WX_EXCLUSIVE) #define PROTECTION_FLAGS_RW (PROT_READ | PROT_WRITE) #define PROTECTION_FLAGS_RX (PROT_READ | PROT_EXEC) #define INITIAL_PROTECTION_FLAGS PROTECTION_FLAGS_RX #else #define INITIAL_PROTECTION_FLAGS (PROT_READ | PROT_WRITE | PROT_EXEC) #endif with ASSEMBLER_WX_EXCLUSIVE beeing enabled only on iphone platform. As I understand it, disabling assembly completely has a too large cost, but it'd be nice to not crash directly if the mmap is denied. A fallback to no jit or no-assembly jit would be better imho. What do you think? I guess this really belongs upstream but I don't have a bugs.webkit.org account right now. Regards, -- Yves-Alexis -- System Information: Debian Release: squeeze/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-5-grsec-amd64 (SMP w/2 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages libwebkit-1.0-2 depends on: ii libatk1.0-0 1.30.0-1 The ATK accessibility toolkit ii libc6 2.11.2-7 Embedded GNU C Library: Shared lib ii libcairo2 1.9.14-1 The Cairo 2D vector graphics libra ii libenchant1c2a 1.6.0-1 a wrapper library for various spel ii libfontconfig1 2.8.0-2.1 generic font configuration library ii libfreetype6 2.4.2-2.1 FreeType 2 font engine, shared lib ii libgail18 2.20.1-2 GNOME Accessibility Implementation ii libglib2.0-0 2.27.3-1 The GLib library of C routines ii libgstreamer-plugins-base0. 0.10.30-1 GStreamer libraries from the "base ii libgstreamer0.10-0 0.10.30-1 Core GStreamer libraries and eleme ii libgtk2.0-0 2.20.1-2 The GTK+ graphical user interface ii libicu44 4.4.2-2 International Components for Unico ii libjpeg62 6b1-1 The Independent JPEG Group's JPEG ii libpango1.0-0 1.28.3-1 Layout and rendering of internatio ii libpng12-0 1.2.44-1 PNG library - runtime ii libsoup2.4-1 2.30.2-1 an HTTP library implementation in ii libsqlite3-0 3.7.3-1 SQLite 3 shared library ii libstdc++6 4.4.5-8 The GNU Standard C++ Library v3 ii libwebkit-1.0-common 1.2.5-2.1 Web content engine library for Gtk ii libxml2 2.7.8.dfsg-1 GNOME XML library ii libxslt1.1 1.1.26-6 XSLT 1.0 processing library - runt ii libxt6 1:1.0.7-1 X11 toolkit intrinsics library libwebkit-1.0-2 recommends no packages. libwebkit-1.0-2 suggests no packages. -- no debconf information
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--- Begin Message ---Version: 2.4.11-4+rm Dear submitter, as the package webkitgtk has just been removed from the Debian archive unstable we hereby close the associated bug reports. We are sorry that we couldn't deal with your issue properly. For details on the removal, please see https://bugs.debian.org/893863 The version of this package that was in Debian prior to this removal can still be found using http://snapshot.debian.org/. This message was generated automatically; if you believe that there is a problem with it please contact the archive administrators by mailing [email protected]. Debian distribution maintenance software pp. Scott Kitterman (the ftpmaster behind the curtain)
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