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items: Negative vm_rss
items: Re: Negative vm_rss

Negative vm_rss
type: item
description: Hello there I run and openvz based system for 14days now. Yesterday this starts : [root]# Nov 29 10:06:30 MYSYS kernel: Negative vm_rss: process pid 20999 comm avbasestest flags 4, vma e35c76f4 b7b26000-b7b43000 00000000 rss 1 freed 29 Nov 29 10:06:30 MYSYS kernel: flags 100075, ub 221 Nov 29 10:06:30 MYSYS kernel: [<c016966f>] warn_bad_zap+0xff/0x120 Nov 29 10:06:30 MYSYS kernel: [<c0169764>] unmap_page_range+0xd4/0xf0 Nov 29 10:06:30 MYSYS kernel: [<c01698a0>] unmap_vmas+0x120/0x250 Nov 29 10:06:30 MYSYS kernel: [<c016f601>] exit_mmap+0xa1/0x1a0 Nov 29 10:06:30 MYSYS kernel: [<c0128cd0>] mmput+0x60/0xb0 Nov 29 10:06:30 MYSYS kernel: [<c012efe1>] do_exit+0x181/0x560 Nov 29 10:06:30 MYSYS kernel: [<c012f4a0>] do_group_exit+0x40/0xb0 Nov 29 10:06:30 MYSYS kernel: [<c04d93e3>] syscall_call+0x7/0xb Now the system crashed all vm's. Only a reboot of the hardwarenode was helpfull. This is reproduceable while updateing aveserver-signatures. HW-Node is running RH-Enterprise 4 2.6.9-023stab032.1-smp #1 SMP VPS is running debian-sarge. Can you give me hint what causes this crash. Best rema. UPDATE: user_baencounters of the vps running the aveserver-prozess Version: 2.5 uid resource held maxheld barrier limit failcnt 221: kmemsize 5426114 5853361 92250112 101475123 0 lockedpages 0 0 4504 4504 0 privvmpages 150377 153989 254771 290248 0 shmpages 1294 1310 15477 15477 0 dummy 0 0 0 0 0 numproc 74 81 4000 4000 0 physpages 79850 80784 0 2147483647 0 vmguarpages 0 0 154771 2147483647 0 oomguarpages 79850 80784 154771 2147483647 0 numtcpsock 13 24 4000 4000 0 numflock 10 14 1000 1100 0 numpty 2 2 400 400 0 numsiginfo 0 2 1024 1024 0 tcpsndbuf 118508 441272 14366037 30750037 0 tcprcvbuf 212992 752320 14366037 30750037 0 othersockbuf 17188 468720 7183018 23567018 0 dgramrcvbuf 0 34300 7183018 7183018 0 numothersock 27 81 4000 4000 0 dcachesize 0 0 20149933 20754432 0 numfile 1941 2239 36032 36032 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 numiptent 10 10 200 200 0
creator: rema
date: 2006-11-29T09:02:48-00:00

Re: Negative vm_rss
type: item
description: Hello, This is a known bug, it is fixed in 2.6.9-023stab034.1, which is not released yet. However, this is the minor bug, so you can work smoothly with it before the new stable kernel will be released. HTH, Vasily.
creator: Vasily Tarasov
date: 2006-11-30T06:59:46-00:00

Re: Negative vm_rss
type: item
description: Tnx for your awnser. I switch to 2.6.18-ovz028test005.1 so this should by happen again. (i hope) Best Rene
creator: rema
date: 2006-11-30T07:03:24-00:00

Re: Negative vm_rss
type: item
description: Can you try 036.1 kernel which is to be released soon? I uploaded it for you here: http://download.openvz.org/~dev/023stab036.1/
creator: dev
date: 2006-11-30T15:42:03-00:00

Re: Negative vm_rss
type: item
description: tnx for this hint. best rema
creator: rema
date: 2006-12-01T10:43:45-00:00