search for: oom_adj

https://bugzilla.mindrot.org/show_bug.cgi?id=2156 Bug ID: 2156 Summary: Fix oom_adj on Linux after sshd reload Product: Portable OpenSSH Version: 6.2p1 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P5 Component: sshd Assignee: unassigned-bugs at mindrot.org...

Just did some testing.. root at vicky:~# cat /var/log/auth.log | grep "Set" May 30 21:41:05 vicky sshd[1568]: Set /proc/self/oom_adj from -17 to -17 May 30 21:41:07 vicky sshd[1574]: Set /proc/self/oom_adj to -17 root at vicky:~# ps faux | grep 1574 root 1574 0.0 0.0 70488 3404 ? Ss 21:41 0:00 \_ sshd: root at pts/1 root at vicky:~# ps faux | grep "1568" root 1568 0.0 0.0 49168 1152 ?...

...ay 30, 2011 at 9:03 PM Subject: Re: cgroup OOM killer loop causes system to lockup (possible fix included) To: debian-kernel at lists.debian.org, debian-user at lists.debian.org More strangeness.. If I keep the kernel module loaded, but disable the entry in /etc/network/interfaces for eth0, the oom_adj problem disappears. But then ofc, I'm left with no network interface. I then tried binding /etc/ssh/sshd_config to only listen on 127.0.0.1.. effectively bypassing the eth0 interface, whilst still allowing it to be loaded. But the problem still happens. As a last ditch attempt, I tried restart...

Currently, on linux sshd attempts to remove itself from the influence of oom-killer by modifying the oom_adj parameter for itself in proc to -17. This is controlled via two functions; oom_adjust_setup() and oom_adjust_restore(). Setup saves the old score (typically zero on initialization) and sets sshd to -17 whilst oom_adjust_restore places the saved value from initialization back into the running sshd...

https://bugzilla.mindrot.org/show_bug.cgi?id=1838 Summary: /proc/self/oom_adj needs to use /proc/self/oom_score_adj Product: Portable OpenSSH Version: 5.6p1 Platform: All OS/Version: Linux Status: NEW Severity: minor Priority: P2 Component: sshd AssignedTo: unassigned...

...to be more accurate). It is useful to instruct the OOM killer never to kill sshd, since almost everyone wants it to keep on running so that they have a chance of dealing with the problem remotely. Originally I implemented this in an init script, by getting sshd's pid and writing to /proc/$pid/oom_adj, but Vaclav Ovsik pointed out in http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=480020 that that ends up immortalising child processes too. The attached patch is based on Vaclav's, though I tidied it up and moved chunks of it into openbsd-compat/port-linux. The use of an environment variable...

I added a subject so we can track this message on the list easier. ;) On Fri, Mar 21, 2014 at 12:19 PM, John Doe <jdmls at yahoo.com> wrote: > Hey, > > kernel: rsync invoked oom-killer: gfp_mask=0x200da, order=0, oom_adj=0, > oom_score_adj=0 > ... > kernel: Out of memory: Kill process 27974 (mysqld) score 361 or > sacrifice child > kernel: Killed process 27974, UID 27, (mysqld) total-vm:3804672kB, > anon-rss:2890828kB, file-rss:3324kB > > rsync whines he wants more RAM and... mysql get...

...omodeset module /initrd-2.6.38.4.img The machine boots normally in CenOS (2.6.38.4). I am also attaching the log of the serial console. A snippet from the log file: CentOS release 5.5 (Final) Kernel 2.6.38.4 on an x86_64 xen109.itpl login: Xorg invoked oom-killer: gfp_mask=0x0, order=0, oom_adj=0, oom_score_adj=0 Pid: 2826, comm: Xorg Not tainted 2.6.38.4 #13 Call Trace: [<ffffffff810ad565>] ? dump_header+0x7d/0xae [<ffffffff810ad911>] ? oom_kill_process+0x46/0x151 [<ffffffff810adabe>] ? select_bad_process+0xa2/0x110 [<ffffffff810adc92>] ? out_of_memory+0x166/0...

...st crash I got a long error message on the console. "Oom-killer" was called repeatedly by httpd and named. I paste below the first error message, which is long. There were several long entries like this. I - Jussi [root at ns1 ~]# httpd invoked oom-killer: gfp_mask=0x280da, order=0, oom_adj=0, oom_score_adj=0 httpd cpuset=/ mems_allowed=0 Pid: 2962, comm: httpd Not tainted 2.6.32-358.23.2.el6.x86_64 #1 Call Trace: [<ffffffff810cb641>] ? cpuset_print_task_mems_allowed+0x91/0xb0 [<ffffffff8111ce40>] ? dump_header+0x90/0x1b0 [<ffffffff810e930e>] ? __delayacct_free...

...deset module /initrd-2.6.38.4.img The machine boots normally in CenOS (2.6.38.4). I am not ale to attach the log of the serial console. A snippet from the log file: CentOS release 5.5 (Final) Kernel 2.6.38.4 on an x86_64 xen109.itpl login: Xorg invoked oom-killer: gfp_mask=0x0, order=0, oom_adj=0, oom_score_adj=0 Pid: 2826, comm: Xorg Not tainted 2.6.38.4 #13 Call Trace: [<ffffffff810ad565>] ? dump_header+0x7d/0xae [<ffffffff810ad911>] ? oom_kill_process+0x46/0x151 [<ffffffff810adabe>] ? select_bad_process+0xa2/0x110 [<ffffffff810adc92>] ? out_of_memory+0x166/0...

...stream When creating Xen DomU's, at some point xend invokes the oom-killer and the entire machine restarts: Sep 5 12:04:59 arbiter kernel: [259697.101212] __ratelimit: 136 callbacks suppressed Sep 5 12:04:59 arbiter kernel: [259697.101218] xend invoked oom-killer: gfp_mask=0x200da, order=0, oom_adj=0 Sep 5 12:04:59 arbiter kernel: [259697.101225] xend cpuset=/ mems_allowed=0 Sep 5 12:04:59 arbiter kernel: [259697.101230] Pid: 1841, comm: xend Not tainted 2.6.32-5-xen-amd64 #1 Sep 5 12:06:23 arbiter kernel: imklog 4.6.4, log source = /proc/kmsg started. Sep 5 12:06:23 arbiter rsyslogd: [or...

...flected by the individual CPU numbers within top, I now have a spattering of occasional daemon crashes that the vservers have historically never had. Such as, here is the start of a nameserver blowing up in my logs: May 12 04:03:41 XXX kernel: named invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0 : # May 12 04:03:41 XXX kernel: named cpuset=/ mems_allowed=0 : # May 12 04:03:41 XXX kernel: Pid: 2208, comm: named Not tainted 2.6.32-573.26.1.el6.x86_64 #1 : # May 12 04:03:41 XXX kernel: Call Trace: : # This nameserver has never had a problem with its memory. And, there...

Hey, ? kernel: rsync invoked oom-killer: gfp_mask=0x200da, order=0, oom_adj=0, oom_score_adj=0 ? ... ? kernel: Out of memory: Kill process 27974 (mysqld) score 361 or sacrifice child ? kernel: Killed process 27974, UID 27, (mysqld) total-vm:3804672kB, anon-rss:2890828kB, file-rss:3324kB rsync whines he wants more RAM and... mysql gets killed... That makes me a bit sad! An...

...9.296889] Out of memory: Kill process 11810 (rsync) score 2 or sacrifice child Jan? 9 19:54:45 ubuntu kernel: [371329.296946] Killed process 11810 (rsync) total-vm:66120kB, anon-rss:0kB, file-rss:4kB Jan? 9 20:30:58 ubuntu kernel: [373501.815163] sshd invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0 Root cause: sshd was killing it's child rsync because the OS was out of RAM.? This may be an uncommon occurrence, but I thought I'd toss it into the mix and let you decide if you want to include a tip covering this cause of failure.? I only allocated 1G RAM to it bec...

Hello, I am running GlusterFS version 3.2.7-2~bpo60+1 on Debian 6.0.6. Today, I have experienced a a glusterfs process cause the server to invoke oom_killer. How exactly would I go about investigating this and coming up with a fix? -- Steve King Network/Linux Engineer - AdSafe Media Cisco Certified Network Professional CompTIA Linux+ Certified Professional CompTIA A+ Certified Professional

...ype RSA debug1: private host key: #0 type 1 RSA debug3: Not a RSA1 key file /local/fips/etc/ssh_host_dsa_key. debug1: read PEM private key done: type DSA debug1: private host key: #1 type 2 DSA debug1: rexec_argv[0]='/local/fips/sbin/sshd' debug1: rexec_argv[1]='-Dedddp2222' debug3: oom_adjust_setup Set /proc/self/oom_adj from 0 to -17 debug2: fd 3 setting O_NONBLOCK debug3: sock_set_v6only: set socket 3 IPV6_V6ONLY debug1: Bind to port 2222 on ::. Server listening on :: port 2222. debug2: fd 4 setting O_NONBLOCK debug1: Bind to port 2222 on 0.0.0.0. Server listening on 0.0.0.0 port 2...

...rtc0) Initializing network drop monitor service Freeing unused kernel memory: 1456k freed Write protecting the kernel read-only data: 10240k Freeing unused kernel memory: 1052k freed Freeing unused kernel memory: 1740k freed dracut: dracut-004-303.el6 udev: starting version 147 udevd (61): /proc/61/oom_adj is deprecated, please use /proc/61/oom_score_adj instead. dracut: Starting plymouth daemon dracut Warning: No root device "block:/dev/hda1" found dracut Warning: Boot has failed. To debug this issue add "rdshell" to the kernel command line. dracut Warning: Signal caught! dra...

...d using the --without-stackprotect configure option. * sshd(8): Add support for pre-authentication sandboxing using the Capsicum API introduced in FreeBSD 10. * Switch to a ChaCha20-based arc4random() PRNG for platforms that do not provide their own. * sshd(8): bz#2156: restore Linux oom_adj setting when handling SIGHUP to maintain behaviour over retart. * sshd(8): bz#2032: use local username in krb5_kuserok check rather than full client name which may be of form user at REALM. * ssh(1), sshd(8): Test for both the presence of ECC NID numbers in OpenSSL and that they actual...

...E_ERROR - ch 7 [Anna[7914]] subc 0 mthd 0x0060 data 0xbeef0201 [ 7151.678580] warning: process `MetroLL' used the deprecated sysctl system call with 10.1. [ 7152.408808] MetroLL[8098]: segfault at 0 ip 08f1a809 sp bff37510 error 4 in MetroLL[8048000+1336000] [ 7208.835103] fm (8122): /proc/8177/oom_adj is deprecated, please use /proc/8177/oom_score_adj instead. [ 7283.219248] nouveau E[ PFIFO][0000:01:00.0] DMA_PUSHER - ch 4 [gnome-shell[1368]] get 0x0020080cf4 put 0x0020081678 ib_get 0x000001c2 ib_put 0x000001c3 state 0x80000024 (err: INVALID_CMD) push 0x00406040 [ 7283.222138] nouveau E[ PGR...

...da samba[1472]: [2018/07/16 14:12:29.374518, 0] ../source4/dsdb/kcc/kcc_periodic.c:693(samba_kcc_done) Jul 16 14:12:30 soda samba[1472]: ../source4/dsdb/kcc/kcc_periodic.c:693: Failed samba_kcc - NT_STATUS_IO_TIMEOUT Jul 16 14:14:35 soda kernel: samba invoked oom-killer: gfp_mask=0x200da, order=0, oom_adj=0, oom_score_adj=0 Jul 16 14:14:36 soda kernel: samba cpuset=/ mems_allowed=0 Jul 16 14:14:36 soda kernel: Pid: 27742, comm: samba Not tainted 2.6.32-696.30.1.el6.x86_64 #1 Jul 16 14:14:36 soda kernel: Call Trace: Jul 16 14:14:36 soda kernel: [<ffffffff81134630>] ? dump_header+0x90/0x1b0 Jul...