Hi, i have few dual opteron-6128 machines which are part of eda software auto-test farm. these machines don't host any vserver guests but installed kernel has vserver-patch applied by vendor. on vanilla kernel 2.6.38 (and newer) with vserver patch applied machines lock in some way after few hours of quite heavy computing + i/o (avg. load ~16). on 2.6.37.y with vserver everything works fine and on pure vanilla kernels also everything works fine. on the ipmi console i've logged only kernel flood: https://lkml.org/lkml/2011/5/23/398 this crash is reproducible on 2.6.38.y/2.6.39.y/3.0.y with the latest vserver patches. # cat /proc/version Linux version 3.0.0-vs2.3.1-pre8-dirty (pawels@hal) (gcc version 4.5.3 20110515 (release) (PLD-Linux) ) #2 SMP Fri Aug 5 09:48:25 CEST 2011 # cat /proc/cpuinfo processor : 0...15 vendor_id : AuthenticAMD cpu family : 16 model : 9 model name : AMD Opteron(tm) Processor 6128 stepping : 1 cpu MHz : 2000.149 cache size : 512 KB physical id : 1 siblings : 8 core id : 3 cpu cores : 8 apicid : 39 initial apicid : 23 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt nodeid_msr npt lbrv svm_lock nrip_save pausefilter bogomips : 4001.84 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate # cat /proc/modules ext2 72951 0 - Live 0xffffffffa04d8000 loop 27624 1 - Live 0xffffffffa04ec000 nfs 312073 1 - Live 0xffffffffa048a000 fscache 46134 1 nfs, Live 0xffffffffa0476000 binfmt_misc 17456 1 - Live 0xffffffffa03fa000 nfsd 310366 13 - Live 0xffffffffa0429000 lockd 84640 2 nfs,nfsd, Live 0xffffffffa0413000 nfs_acl 12741 2 nfs,nfsd, Live 0xffffffffa03f5000 auth_rpcgss 47785 2 nfs,nfsd, Live 0xffffffffa0406000 sunrpc 216671 22 nfs,nfsd,lockd,nfs_acl,auth_rpcgss, Live 0xffffffffa03bf000 exportfs 12851 1 nfsd, Live 0xffffffffa03a6000 ipmi_si 52811 0 - Live 0xffffffffa03b1000 ipmi_devintf 17522 0 - Live 0xffffffffa03ab000 ipmi_msghandler 43683 2 ipmi_si,ipmi_devintf, Live 0xffffffffa039a000 sch_sfq 17212 2 - Live 0xffffffffa038d000 iptable_nat 13182 1 - Live 0xffffffffa0395000 nf_nat 24588 1 iptable_nat, Live 0xffffffffa037e000 nf_conntrack_ipv4 19478 3 iptable_nat,nf_nat, Live 0xffffffffa0387000 nf_conntrack 76827 3 iptable_nat,nf_nat,nf_conntrack_ipv4, Live 0xffffffffa036a000 nf_defrag_ipv4 12673 1 nf_conntrack_ipv4, Live 0xffffffffa0365000 iptable_filter 12810 0 - Live 0xffffffffa0360000 xt_TCPMSS 12715 2 - Live 0xffffffffa02f0000 xt_tcpudp 12603 2 - Live 0xffffffffa02e2000 iptable_mangle 12695 1 - Live 0xffffffffa02dd000 ip_tables 26705 3 iptable_nat,iptable_filter,iptable_mangle, Live 0xffffffffa02d1000 ip6table_filter 12815 0 - Live 0xffffffffa0217000 ip6_tables 26996 1 ip6table_filter, Live 0xffffffffa027a000 x_tables 27634 8 iptable_nat,iptable_filter,xt_TCPMSS,xt_tcpudp,iptable_mangle,ip_tables,ip6table_filter,ip6_tables, Live 0xffffffffa0262000 ext4 403044 1 - Live 0xffffffffa02fc000 jbd2 84403 1 ext4, Live 0xffffffffa02bb000 crc16 12559 1 ext4, Live 0xffffffffa0212000 raid0 17106 1 - Live 0xffffffffa0245000 dm_mod 75794 0 - Live 0xffffffffa0296000 autofs4 28311 11 - Live 0xffffffffa01e6000 dummy 12955 0 - Live 0xffffffffa01a0000 usbhid 46436 0 - Live 0xffffffffa02ae000 hid 93560 1 usbhid, Live 0xffffffffa01fa000 ide_cd_mod 35415 0 - Live 0xffffffffa01dc000 cdrom 41847 1 ide_cd_mod, Live 0xffffffffa01d0000 ata_generic 12899 0 - Live 0xffffffffa019b000 pata_acpi 13027 0 - Live 0xffffffffa0186000 pata_atiixp 13165 0 - Live 0xffffffffa015d000 sp5100_tco 13697 0 - Live 0xffffffffa014f000 ide_pci_generic 12866 0 - Live 0xffffffffa014a000 ohci_hcd 31523 0 - Live 0xffffffffa017d000 psmouse 68641 0 - Live 0xffffffffa0284000 ghes 13625 0 - Live 0xffffffffa01cb000 ssb 56258 1 ohci_hcd, Live 0xffffffffa026b000 mmc_core 85395 1 ssb, Live 0xffffffffa024c000 igb 115008 0 - Live 0xffffffffa0227000 i2c_piix4 13167 0 - Live 0xffffffffa0158000 amd64_edac_mod 28622 0 - Live 0xffffffffa01f2000 pcmcia 43683 1 ssb, Live 0xffffffffa0171000 dca 14562 1 igb, Live 0xffffffffa00de000 pcspkr 12702 0 - Live 0xffffffffa00e3000 i2c_core 28557 1 i2c_piix4, Live 0xffffffffa0142000 hed 13102 1 ghes, Live 0xffffffffa01a9000 edac_core 51596 6 amd64_edac_mod, Live 0xffffffffa0134000 button 13611 0 - Live 0xffffffffa011c000 pcmcia_core 21861 1 pcmcia, Live 0xffffffffa02f5000 atiixp 12917 0 - Live 0xffffffffa02eb000 processor 30161 0 - Live 0xffffffffa021e000 ide_core 108026 3 ide_cd_mod,ide_pci_generic,atiixp, Live 0xffffffffa01af000 serio_raw 13166 0 - Live 0xffffffffa012f000 ehci_hcd 44738 0 - Live 0xffffffffa018f000 edac_mce_amd 22882 1 amd64_edac_mod, Live 0xffffffffa016a000 k10temp 13119 0 - Live 0xffffffffa0162000 hwmon 12886 1 k10temp, Live 0xffffffffa0117000 sg 36330 0 - Live 0xffffffffa0125000 usbcore 159860 4 usbhid,ohci_hcd,ehci_hcd, Live 0xffffffffa00ee000 evdev 17753 0 - Live 0xffffffffa00e8000 sd_mod 44764 16 - Live 0xffffffffa00d2000 crc_t10dif 12483 1 sd_mod, Live 0xffffffffa0083000 raid1 30545 1 - Live 0xffffffffa00ac000 md_mod 106323 4 raid0,raid1, Live 0xffffffffa00b5000 ext3 138195 1 - Live 0xffffffffa0089000 jbd 55191 1 ext3, Live 0xffffffffa0074000 mbcache 14317 3 ext2,ext4,ext3, Live 0xffffffffa0031000 ahci 25854 12 - Live 0xffffffffa006c000 libahci 25686 1 ahci, Live 0xffffffffa0029000 libata 197408 5 ata_generic,pata_acpi,pata_atiixp,ahci,libahci, Live 0xffffffffa003a000 scsi_mod 161130 3 sg,sd_mod,libata, Live 0xffffffffa0000000 # df -h Filesystem Size Used Avail Use% Mounted on /dev/md0 7.6G 3.6G 3.7G 50% / /dev/md1 1.9T 122G 1.8T 7% /home/atest none 32G 0 32G 0% /dev/shm nexus:/R0 1.8T 531G 1.2T 31% /remote/nexus/R0 # cat /proc/mdstat Personalities : [raid1] [raid0] md1 : active raid0 sda3[0] sdd3[3] sdc3[2] sdb3[1] 2047993856 blocks super 1.2 512k chunks md0 : active raid1 sda1[0] sdd1[3] sdc1[2] sdb1[1] 8000256 blocks [4/4] [UUUU] # /bin/bash testme.sh Linux-VServer Test [V0.17] Copyright (C) 2003-2006 H.Poetzl utility 'vserver' could not be found. # ./testfs.sh -t -x -y -z -D /dev/loop0 -M /mnt Linux-VServer FS Test [V0.23] Copyright (C) 2005-2009 H.Poetzl Linux 3.0.0-vs2.3.1-pre8-dirty x86_64/ VCI: 0002:0308 236 13011f11 (ID24) --- testing ext2 filesystem ... [000]. [001]. [002]. (ext2 format) tag related tests ... [011]. [012]* [014]* [015]* [019]. [020]* [021]. [022]* [023]. [024]* [025]* [026]* [027]* [028]* [033]* [034]* [035]* [037]* [045]* [047]* xattr related tests ... [101]. [103]* [104]* [106]* [107]* [109] [112]* [113]* [114]. [115]* [116]* [118]* [119]* [122]* [123]* [124]* [125]. [127]* [128]* [129]* [131]* [132]. [133]* [134]* [135]* [138]. [139]. [148]. [149]. disk limit related tests ... [201]* [202]* [203]. [204]* [205]. [206]. [207]. [208]. [211]* [212]* [213]. [222]. [223]. [231]. [232]. [233]. [239]. [999]. --- testing ext3 filesystem ... [000]. [001]. [002]. (ext3 format) tag related tests ... [011]. [012]* [014]* [015]* [019]. [020]* [021]. [022]* [023]. [024]* [025]* [026]* [027]* [028]* [033]* [034]* [035]* [037]* [045]* [047]* xattr related tests ... [101]. [103]* [104]* [106]* [107]* [109]* [112]* [113]* [114]. [115]* [116]* [118]* [119]* [122]* [123]* [124]* [125]. [127]* [128]* [129]* [131]* [132]. [133]* [134]* [135]* [138]. [139]. [148]. [149]. disk limit related tests ... [201]* [202]* [203]. [204]* [205]. [206]. [207]. [208]. [211]* [212]* [213]. [222]. [223]. [231]. [232]. [233]. [239]. [999]. --- testing ext4 filesystem ... [000]. [001]. [002]. (ext4 format) tag related tests ... [011]. [012]* [014]* [015]* [019]. [020]* [021]. [022]* [023]. [024]* [025]* [026]* [027]* [028]* [033]* [034]* [035]* [037]* [045]* [047]* xattr related tests ... [101]. [103]* [104]* [106]* [107]* [109]* [112]* [113]* [114]. [115]* [116]* [118]* [119]* [122]* [123]* [124]* [125]. [127]* [128]* [129]* [131]* [132]. [133]* [134]* [135]* [138]. [139]. [148]. [149]. disk limit related tests ... [201]* [202]* [203]. [204]* [205]. [206]. [207]. [208]. [211]* [212]* [213]. [222]. [223]. [231]. [232]. [233]. [239]. [999]. --- testing xfs filesystem ... [000]* (xfs format failed) --- testing reiser filesystem ... [000]* (reiserfs format failed) --- testing jfs filesystem ... [000]* (jfs format failed)