Re: [Crash-utility] Crash utility on Android

----- Original Message ----- > Hi , > I am going to using crash utility for kernel issue on my Android device , It > is a ARM cortex chip with Qualcomm platform , So I download crash source > code and built it as ARM target , but looks problem as below , I also attach > build log , thanks a lot for your kindly help , > > > Br > Jordan Not that it's necessarily indicative of the problem at hand, but I am curious as to how your build came up with a target of "arm-linux-androideabi"? When building crash with "make target=ARM", the configure command argument passed to the embedded gdb build is "--target =arm-elf-linux", and on a RHEL or Fedora x86_64 host, "gnu" gets appended to it, such that the resultant target is shown like this in the gdb banner: This GDB was configured as "--host=x86_64-unknown-linux-gnu --target=arm-elf-linux"... Is your x86_64 host machine also running an Android environment? Anyway, it actually made it quite far into the initialization before it fails with the "crash: cannot hash task_struct entries", which I believe is caused by a bug in the ARM code here in the unwind_arm.c function init_module_unwind_tables(): hq_open(); cnt = do_list(&ld); if (cnt == -1) { error(WARNING, "UNWIND: failed to gather unwind_table list"); return FALSE; } If you put a call to hq_close() here, it should at least continue on a bit farther in the initialization sequence: hq_open(); cnt = do_list(&ld); if (cnt == -1) { error(WARNING, "UNWIND: failed to gather unwind_table list"); + hq_close(); return FALSE; } I'm not sure what's happening w/respect to the crash_notes and unwind info gathering. The ARM guys on this list may have some ideas about that?

Also, when posting crash initialization-type failures, can you also attach a full debug output by putting "-d8" on the crash command line? Thanks, Dave > --------------Crash > Log------------------------------------------------------------- > crash 7.0.2 > Copyright (C) 2002-2013 Red Hat, Inc. > Copyright (C) 2004, 2005, 2006, 2010 IBM Corporation > Copyright (C) 1999-2006 Hewlett-Packard Co > Copyright (C) 2005, 2006, 2011, 2012 Fujitsu Limited > Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. > Copyright (C) 2005, 2011 NEC Corporation > Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc. > Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc. > This program is free software, covered by the GNU General Public License, > and you are welcome to change it and/or distribute copies of it under > certain conditions. Enter "help copying" to see the conditions. > This program has absolutely no warranty. Enter "help warranty" for details. > GNU gdb (GDB) 7.6 > Copyright (C) 2013 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later < http://gnu.org/licenses/gpl.html > > > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "--host=x86_64-unknown-linux-gnu > --target=arm-linux-androideabi"... > > WARNING: invalid note (n_type != NT_PRSTATUS) > WARNING: could not retrieve crash_notes > > crash: invalid list entry: 90a0909 > WARNING: UNWIND: failed to gather unwind_table listWARNING: UNWIND: failed to > initialize module unwind tables > please wait... (gathering task table data) > crash: cannot hash task_struct entries > > > -- > Crash-utility mailing list > Crash-utility(a)redhat.com > https://www.redhat.com/mailman/listinfo/crash-utility -- Crash-utility mailing list Crash-utility(a)redhat.com https://www.redhat.com/mailman/listinfo/crash-utility