Re: [Crash-utility] Wrong RSS field in ps

----- Original Message ----- > On Mon, 3 Aug 2015 14:54:28 -0400 (EDT) > Dave Anderson <anderson(a)redhat.com&gt; wrote: > > > > > > > ----- Original Message ----- > > > Hello Dave, > > > > > > On s390 (kernel 4.2.0-rc2) the "RSS" field in "ps" is wrong. > > > > > > The reason is that in rss_page_types_init() > > > enumerator_value("MM_ANONPAGES", > > > &anonpages) returns zero for "anonpages" and therefore we add > > > MM_FILEPAGES > > > twice instead of adding MM_ANONPAGES. > > > > > [snip] > > > And I verified that the enumerator_value() function returns successfully, > > and that > > it returns the correct values. If enumerator_value() returns successfully, > > they get > > stored in the task_table: > > > > crash> help -t | grep -e filepages -e anonpages > > filepages: 0 > > anonpages: 1 > > crash>[root@hp-dl980g7-02 crash.git] > > > > When you you do a "help -t" do you see both of the above showing "0"? > > crash> help -t | grep -e filepages -e anonpages > filepages: 0 > anonpages: 0 > > Perhaps a gdb issue on s390? What does gdb alone show? I'm not sure the best way to dump anonymous enums with gdb, but this should show a value of 1 for MM_ANONPAGES: # gdb /usr/lib/debug/lib/modules/4.2.0-0.rc4.git1.1.fc23.x86_64/vmlinux GNU gdb (GDB) Fedora 7.9.90.20150717-7.fc23 Copyright (C) 2015 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 "x86_64-redhat-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>;. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>;. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/lib/debug/lib/modules/4.2.0-0.rc4.git1.1.fc23.x86_64/vmlinux...done. (gdb) printf "%d\n", MM_ANONPAGES 1