Package: crash Version: 7.1.7-1 Severity: normal Dear Maintainer,
When running a live crash session on a 4.8 kernel or newer, the crash command will fail with : WARNING: kernel relocated [382MB]: patching 89934 gdb minimal_symbol values crash: read error: kernel virtual address: ffffffff99c44aa8 type: "page_offset_base" crash: this kernel may be configured with CONFIG_STRICT_DEVMEM, which renders /dev/mem unusable as a live memory source. crash: trying /proc/kcore as an alternative to /dev/mem crash: seek error: kernel virtual address: ffffffff99c44aa8 type: "page_offset_base" This issue is fixed by upstream commit ad1a44f5d9b9a41d2c43bb386c765913275f05bf : From: Dave Anderson <ander...@redhat.com> Date: Fri, 13 Jan 2017 15:38:39 -0500 Subject: [PATCH] Fix for support of /proc/kcore as the live memory source in Linux 4.8 and later x86_64 kernels configured with CONFIG_RANDOMIZE_BASE, which randomizes the unity-mapping PAGE_OFFSET value. Without the patch, the crash session fails during session initialization with the error message "crash: seek error: kernel virtual address: <address> type: page_offset_base". (ander...@redhat.com) Running crash on a real crash file works correctly. Kind Regards, ...Louis Bouchard -- System Information: Debian Release: stretch/sid Architecture: amd64 (x86_64) Locale: LANG=en_US.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) -- no debconf information