I recently downloaded and started using kernel 2.6.15.3 with the bs2 patches from BlaisorBlade's website. Most of my instances continued to run as normal, however I started experiencing outages on a couple of them this morning. Specifically, two of the instances stopped responding to network and console input. They also ignored 'cad' commands from the uml_mconsole utility. A third dumped the following (10 times) to its console immediately before it started ignoring input:
swapper: page allocation failure. order:0, mode:0x20 0821f2c8: [<0808a2c3>] __alloc_pages+0x274/0x286 0821f308: [<0808c8b5>] kmem_getpages+0x4a/0x9f 0821f31c: [<0808d384>] cache_grow+0x96/0x122 0821f350: [<0808d563>] cache_alloc_refill+0x153/0x186 0821f374: [<0808d7ac>] __kmalloc+0x5b/0x6d 0821f390: [<081717a0>] __alloc_skb+0x52/0x129 0821f3ac: [<080609ba>] uml_net_rx+0x1e/0x13c 0821f3cc: [<08060afc>] uml_net_interrupt+0x1f/0x91 0821f410: [<08085a2b>] handle_IRQ_event+0x24/0x54 0821f434: [<08085aae>] __do_IRQ+0x53/0x91 0821f448: [<08057bc8>] do_IRQ+0x20/0x2c 0821f450: [<08057d5d>] sigio_handler+0xa5/0xcf 0821f468: [<0805e485>] sig_handler_common_skas+0xa5/0xbe 0821f48c: [<0806798e>] sig_handler+0xe/0x11 0821f5b8: [<0805a555>] change_signals+0x30/0x50 0821f5e0: [<0805a694>] set_signals+0xa4/0xc0 0821f688: [<0805a694>] set_signals+0xa4/0xc0 0821f6d0: [<0805a555>] change_signals+0x30/0x50 0821f71c: [<0805a555>] change_signals+0x30/0x50 0821f730: [<0805a555>] change_signals+0x30/0x50 0821f758: [<0805a694>] set_signals+0xa4/0xc0 0821f7c0: [<08066632>] file_io+0x19/0xa7 0821f7d4: [<0805a513>] change_sig+0x44/0x56 0821f814: [<0805a555>] change_signals+0x30/0x50 0821f8c8: [<08072ba4>] __do_softirq+0x34/0x8d 0821f8dc: [<08072c2c>] do_softirq+0x2f/0x39 0821f8e8: [<08072cc7>] irq_exit+0x2c/0x2e 0821f8f0: [<0805b1ae>] timer_handler+0x2e/0x49 0821f904: [<0805e485>] sig_handler_common_skas+0xa5/0xbe 0821f920: [<0805e091>] start_kernel_proc+0x0/0x2a 0821f928: [<080679b8>] alarm_handler+0x27/0x3b 0821f950: [<0805e091>] start_kernel_proc+0x0/0x2a 0821fa18: [<0805dde5>] new_thread_handler+0x0/0xa7 0821fa28: [<0805d87e>] new_thread+0x61/0x69 0821fabc: [<08056336>] _einittext+0x1360/0x1956 0821fad0: [<08055590>] _einittext+0x5ba/0x1956 0821fad8: [<08056045>] _einittext+0x106f/0x1956 0821fb10: [<0805d721>] switch_threads+0x36/0x3d 0821fb38: [<0805a555>] change_signals+0x30/0x50 0821fbec: [<081d38b7>] schedule+0x411/0x464 0821fc14: [<0805aeb9>] idle_sleep+0x1d/0x21 0821fc28: [<080591fa>] default_idle+0x43/0x46 0821fc34: [<0805e08e>] init_idle_skas+0x20/0x23 0821fc40: [<080494cd>] start_kernel+0x166/0x16a 0821fc50: [<0805e0b7>] start_kernel_proc+0x26/0x2a 0821fc58: [<080678ae>] run_kernel_thread+0x30/0x3b 0821fc68: [<0805e091>] start_kernel_proc+0x0/0x2a 0821fc74: [<08067898>] run_kernel_thread+0x1a/0x3b 0821fd00: [<0805de64>] new_thread_handler+0x7f/0xa7 0821fd04: [<0805e091>] start_kernel_proc+0x0/0x2a Mem-info: DMA per-cpu: cpu 0 hot: low 0, high 18, batch 3 used:2 cpu 0 cold: low 0, high 6, batch 1 used:0 DMA32 per-cpu: empty Normal per-cpu: empty HighMem per-cpu: empty Free pages: 384kB (0kB HighMem) Active:4946 inactive:8456 dirty:1087 writeback:3842 unstable:0 free:96 slab:1601 mapped:8340 pagetables:98 DMA free:384kB min:1024kB low:1280kB high:1536kB active:19784kB inactive:33824kB present:65536kB pages_scanned:33 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB DMA32: empty Normal: empty HighMem: empty Swap cache: add 655, delete 23, find 0/0, race 0+0 Free swap = 128440kB Total swap = 131060kB Free swap: 128440kB 16384 pages of RAM 0 pages of HIGHMEM 952 reserved pages 13192 pages shared 632 pages swap cached This instance is on an older SuSE 9.1 image. However, the other instances were Debian. Also, the host kernel is 2.6.13.2-skas3-v8.2. I've downgraded the guest instances to 2.6.15.1-bs1 which still appears to be stable. Any ideas? Would further information help? If needed, I can make the guest kernel configuration and the other 9 copies of the error message available. Tony ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
