Sorry if I'm completely wrong, I just wanted to give it a shot. I tried hard to see if you have included the infamous bug that is fixed with this commit here: https://git.launchpad.net/~ubuntu-kernel- test/ubuntu/+source/linux/+git/mainline- crack/commit/?id=21f54ddae449f4bdd9f1498124901d67202243d9 but I can't find anything in the patches.
I stumbled on this issue while looking something for a friend, and it looked strange, so I tried to investigate it a bit more. I have no idea about kernel programming so if I'm wrong feel free to delete my post. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1634862 Title: PPC + kernel 4.8 swap_dup: Bad swap file entry 2c0000000016ed28 Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Bug description: Hi on ppc machines with Ubuntu 16.10 (Yakkety Yak), after upgrading to last Ubuntu kernel (4.8), and running installation of MLNX_OFED Driver package that run a compilation jobs that equal to number of CPUs , the System hangs and we got a bad swap file message with pages and pages of the following showing, this is just a sample from the system log. I had been running with kernel 4.4 and everything worked ok on the same machine, so when we upgrade to kernel 4.8 we start to see the following error dmseg log gets lots of this message: ------------------------------------------------------------- [10101.785548] swap_dup: Bad swap file entry 2c0000000016ed28 [10101.785595] swap_dup: Bad swap file entry 2c0000000016ed29 [10101.785606] swap_dup: Bad swap file entry 2c0000000016ed2a [10101.785613] swap_dup: Bad swap file entry 2c0000000016ed2b [10101.785622] swap_dup: Bad swap file entry 2c0000000016ed2c [10101.785629] swap_dup: Bad swap file entry 2c0000000016ed2d [10101.785637] swap_dup: Bad swap file entry 2c0000000016ed2e [10101.785648] swap_dup: Bad swap file entry 2c0000000016ed2f [10101.785659] swap_dup: Bad swap file entry 2c0000000016ed2e and call trace : Call Trace: [10101.785773] [c0000002fb923ac0] [c000000000b9db00] dump_stack+0xb0/0xf0 (unreliable) [10101.785789] [c0000002fb923b00] [c000000000b9b330] dump_header+0x84/0x224 [10101.785801] [c0000002fb923bd0] [c00000000025d724] oom_kill_process+0x3b4/0x5c0 [10101.785811] [c0000002fb923c80] [c00000000025dc80] out_of_memory+0x290/0x580 [10101.785822] [c0000002fb923d30] [c00000000025dff4] pagefault_out_of_memory+0x84/0xb0 [10101.785836] [c0000002fb923d80] [c000000000b94d44] do_page_fault+0x7c4/0x7d0 [10101.785849] [c0000002fb923e30] [c000000000008948] handle_page_fault+0x10/0x30 # cat /etc/*-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=16.10 DISTRIB_CODENAME=yakkety DISTRIB_DESCRIPTION="Ubuntu 16.10" NAME="Ubuntu" VERSION="16.10 (Yakkety Yak)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 16.10" VERSION_ID="16.10" HOME_URL="http://www.ubuntu.com/"; SUPPORT_URL="http://help.ubuntu.com/"; BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"; PRIVACY_POLICY_URL="http://www.ubuntu.com/legal/terms-and-policies/privacy-policy"; VERSION_CODENAME=yakkety UBUNTU_CODENAME=yakkety To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1634862/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
