seems to be a ktorrent problem. But also may be because of kernel, don't really know. All works, but at some time X stops responding, mouse stops moving and I see the activity of hard disk (hdd led is on). In /var/log/messages the following appears many times : Sep 12 20:17:47 xaptop kernel: [176880.392142] ktorrent D f38bbb5c 0 10352 1 0x00000000 Sep 12 20:17:47 xaptop kernel: [176880.392153] f38bbb6c 00000086 00000002 f38bbb5c 00011200 c05d8a20 c08c3700 c08c3700 Sep 12 20:17:47 xaptop kernel: [176880.392167] c3c9e1b6 0000a0c0 c08c3700 c08c3700 c3c62877 0000a0c0 00000000 c08c3700 Sep 12 20:17:47 xaptop kernel: [176880.392180] c08c3700 ea198000 00000001 ea198000 c2921700 f38bbbb8 f38bbb7c c05c69b1 Sep 12 20:17:47 xaptop kernel: [176880.392193] Call Trace: Sep 12 20:17:47 xaptop kernel: [176880.392209] [] io_schedule+0x61/0xa0 Sep 12 20:17:47 xaptop kernel: [176880.392219] [] sync_buffer+0x38/0x40 Sep 12 20:17:47 xaptop kernel: [176880.392226] [] __wait_on_bit+0x4d/0x70 Sep 12 20:17:47 xaptop kernel: [176880.392233] [] ? sync_buffer+0x0/0x40 Sep 12 20:17:47 xaptop kernel: [176880.392240] [] ? sync_buffer+0x0/0x40 Sep 12 20:17:47 xaptop kernel: [176880.392248] [] out_of_line_wait_on_bit+0xab/0xc0 Sep 12 20:17:47 xaptop kernel: [176880.392257] [] ? wake_bit_function+0x0/0x50 Sep 12 20:17:47 xaptop kernel: [176880.392264] [] __wait_on_buffer+0x2e/0x30 Sep 12 20:17:47 xaptop kernel: [176880.392271] [] __bread+0x72/0xa0 Sep 12 20:17:47 xaptop kernel: [176880.392279] [] ext3_get_branch+0x72/0xf0 Sep 12 20:17:47 xaptop kernel: [176880.392287] [] ext3_get_blocks_handle+0x83/0x4a0 Sep 12 20:17:47 xaptop kernel: [176880.392297] [] ? submit_bio+0x72/0x100 Sep 12 20:17:47 xaptop kernel: [176880.392304] [] ext3_get_block+0xb0/0x100 Sep 12 20:17:47 xaptop kernel: [176880.392313] [] do_mpage_readpage+0x1c6/0x730 Sep 12 20:17:47 xaptop kernel: [176880.392322] [] ? ____pagevec_lru_add+0x179/0x190 Sep 12 20:17:47 xaptop kernel: [176880.392329] [] ? __lru_cache_add+0x47/0x60 Sep 12 20:17:47 xaptop kernel: [176880.392337] [] ? add_to_page_cache_lru+0x5c/0x70 Sep 12 20:17:47 xaptop kernel: [176880.392345] [] mpage_readpages+0xc7/0x100 Sep 12 20:17:47 xaptop kernel: [176880.392352] [] ? ext3_get_block+0x0/0x100 Sep 12 20:17:47 xaptop kernel: [176880.392361] [] ? __alloc_pages_nodemask+0xd9/0x1c0 Sep 12 20:17:47 xaptop kernel: [176880.392368] [] ? ext3_readpages+0x0/0x20 Sep 12 20:17:47 xaptop kernel: [176880.392375] [] ext3_readpages+0x1e/0x20 Sep 12 20:17:47 xaptop kernel: [176880.392382] [] ? ext3_get_block+0x0/0x100 Sep 12 20:17:47 xaptop kernel: [176880.392390] [] __do_page_cache_readahead+0x14c/0x210 Sep 12 20:17:47 xaptop kernel: [176880.392398] [] ra_submit+0x26/0x30 Sep 12 20:17:47 xaptop kernel: [176880.392406] [] filemap_fault+0x3cf/0x400 Sep 12 20:17:47 xaptop kernel: [176880.392413] [] ? copy_to_user+0x39/0x130 Sep 12 20:17:47 xaptop kernel: [176880.392422] [] __do_fault+0x40/0x570 Sep 12 20:17:47 xaptop kernel: [176880.392429] [] handle_mm_fault+0x146/0x400 Sep 12 20:17:47 xaptop kernel: [176880.392438] [] ? udp_ioctl+0x0/0x80 Sep 12 20:17:47 xaptop kernel: [176880.392447] [] do_page_fault+0x146/0x440 Sep 12 20:17:47 xaptop kernel: [176880.392456] [] ? sys_socketcall+0x175/0x2a0 Sep 12 20:17:47 xaptop kernel: [176880.392464] [] ? do_page_fault+0x0/0x440 Sep 12 20:17:47 xaptop kernel: [176880.392471] [] error_code+0x73/0x78 Sep 12 20:17:47 xaptop kernel: [176880.392479] [] ? identify_cpu+0xc4/0x229 Sometimes info about memory is shown: Sep 12 20:23:32 xaptop kernel: [177192.740206] Mem-Info: Sep 12 20:23:32 xaptop kernel: [177192.740210] DMA per-cpu: Sep 12 20:23:32 xaptop kernel: [177192.740215] CPU 0: hi: 0, btch: 1 usd: 0 Sep 12 20:23:32 xaptop kernel: [177192.740221] CPU 1: hi: 0, btch: 1 usd: 0 Sep 12 20:23:32 xaptop kernel: [177192.740225] Normal per-cpu: Sep 12 20:23:32 xaptop kernel: [177192.740230] CPU 0: hi: 186, btch: 31 usd: 178 Sep 12 20:23:32 xaptop kernel: [177192.740235] CPU 1: hi: 186, btch: 31 usd: 143 Sep 12 20:23:32 xaptop kernel: [177192.740239] HighMem per-cpu: Sep 12 20:23:32 xaptop kernel: [177192.740244] CPU 0: hi: 186, btch: 31 usd: 135 Sep 12 20:23:32 xaptop kernel: [177192.740249] CPU 1: hi: 186, btch: 31 usd: 117 Sep 12 20:23:32 xaptop kernel: [177192.740260] active_anon:298847 inactive_anon:156151 isolated_anon:2336 Sep 12 20:23:32 xaptop kernel: [177192.740263] active_file:356 inactive_file:737 isolated_file:0 Sep 12 20:23:32 xaptop kernel: [177192.740266] unevictable:0 dirty:2 writeback:237 unstable:0 Sep 12 20:23:32 xaptop kernel: [177192.740269] free:11818 slab_reclaimable:5084 slab_unreclaimable:19326 Sep 12 20:23:32 xaptop kernel: [177192.740272] mapped:5928 shmem:25602 pagetables:4420 bounce:0 Sep 12 20:23:32 xaptop kernel: [177192.740287] DMA free:6612kB min:64kB low:80kB high:96kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15804kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:136kB slab_unreclaimable:104kB kernel_stack:16kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes Sep 12 20:23:32 xaptop kernel: [177192.740299] lowmem_reserve[]: 0 865 2006 2006 Sep 12 20:23:32 xaptop kernel: [177192.740319] Normal free:40204kB min:3728kB low:4660kB high:5592kB active_anon:338836kB inactive_anon:339044kB active_file:612kB inactive_file:1044kB unevictable:0kB isolated(anon):768kB isolated(file):0kB present:885944kB mlocked:0kB dirty:0kB writeback:212kB mapped:8760kB shmem:46044kB slab_reclaimable:20200kB slab_unreclaimable:77200kB kernel_stack:3824kB pagetables:4612kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:224 all_unreclaimable? no Sep 12 20:23:32 xaptop kernel: [177192.740333] lowmem_reserve[]: 0 0 9134 9134 Sep 12 20:23:32 xaptop kernel: [177192.740351] HighMem free:456kB min:512kB low:1740kB high:2972kB active_anon:856552kB inactive_anon:285560kB active_file:812kB inactive_file:1904kB unevictable:0kB isolated(anon):8576kB isolated(file):0kB present:1169168kB mlocked:0kB dirty:8kB writeback:736kB mapped:14952kB shmem:56364kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:13068kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:352 all_unreclaimable? no Sep 12 20:23:32 xaptop kernel: [177192.740365] lowmem_reserve[]: 0 0 0 0 Sep 12 20:23:32 xaptop kernel: [177192.740372] DMA: 7*4kB 21*8kB 17*16kB 14*32kB 11*64kB 11*128kB 6*256kB 2*512kB 1*1024kB 0*2048kB 0*4096kB = 6612kB Sep 12 20:23:32 xaptop kernel: [177192.740393] Normal: 9299*4kB 6*8kB 1*16kB 6*32kB 5*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 40204kB Sep 12 20:23:32 xaptop kernel: [177192.740414] HighMem: 22*4kB 4*8kB 11*16kB 5*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 456kB Sep 12 20:23:32 xaptop kernel: [177192.740435] 36030 total pagecache pages Sep 12 20:23:32 xaptop kernel: [177192.740439] 9304 pages in swap cache Sep 12 20:23:32 xaptop kernel: [177192.740444] Swap cache stats: add 770325, delete 761021, find 698606/719042 Sep 12 20:23:32 xaptop kernel: [177192.740449] Free swap = 0kB Sep 12 20:23:32 xaptop kernel: [177192.740452] Total swap = 2008120kB Sep 12 20:23:32 xaptop kernel: [177192.753276] 521904 pages RAM Sep 12 20:23:32 xaptop kernel: [177192.753282] 294594 pages HighMem Sep 12 20:23:32 xaptop kernel: [177192.753286] 9235 pages reserved Sep 12 20:23:32 xaptop kernel: [177192.753289] 21326 pages shared Sep 12 20:23:32 xaptop kernel: [177192.753293] 486620 pages non-shared It seems, that the memory and swap are fully filled. After some time (10-20 minutes) X restarts and everything goes ok. Maybe it's kernel's problem, but this lines always appear with "ktorrent D f38bbb5c 0 10352 1 0x00000000" before. I suppose, I'd file a bug to ktorrent or kernel, but not sure. What should I better do?

When	Who	Action	New State
2010-09-12	actionparsnip	Request for more information	Needs information
2010-09-12	Evgeny Brazgin	Give more information	Open
2010-09-12	actionparsnip	Answer	Answered

Ubuntuktorrent package

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ktorrent package