Niltze, Ed- Here is some additional feedback on Debian stretch-backport'ed Linux kernel 4.12.14 EOL: linux/debian/changelog top fragment below. linux (4.12.14-2+reiser4.0.1) metztli; urgency=medium * Non-maintainer upload. * stretch-backports Reiser4, Software Format Release Number (SFRN) 4.0.1 * Applied differential patches 4.12.12-13 and 4.12.13-14 to debian (last) packaging 4.12.12-2 -- Metztli Information Technology <jose@xxxxxxxxxxxxxx> Wed, 20 Sep 2017 23:03:08 -0700 --------------end of fragment ----------------------- Still testing transparent-compression on 1.2TB reiser4 (SFRN) 4.0.1 root filesystem environment. Same installation as reported (in recreated post for Twitter reiser4 promotion): < https://metztli.it/blog/index.php/amatl/reiser-nahui/metztli-reiser4-successful-debian-stretch > except upgraded to kernel referenced in subject. I am using your last patch: reiser4-for-4.12.2.patch.gz I have successfully built VirtualBox 5.1.28 with the headers generated with my current Debian kernel hack package: < https://sourceforge.net/projects/metztli-reiser4/files/Reiser4-Linux-4.12.14EOL_for-Stretch/ > which I have used to create a couple of Debian VMs of some 400MB. Issue description: While using svn to fetch GCC-5, INFO summary of blocked tasks below introduced hiccups of 2 to 3 minutes. I had firefox, chromium, and seamonkey, browsers open -- as well as Apache OpenOffice 4.1.4 and vi-clone elvis GUI text editor. Desktop environment: Enlightenment E21 GUI manager and Terminology managing zsh instances. INFO summary of blocked tasks: [34680.372631] INFO: task Cache2 I/O:1738 blocked for more than 120 seconds. [34680.373300] INFO: task localStorage DB:1816 blocked for more than 120 seconds. [34680.373921] INFO: task mozStorage #4:1822 blocked for more than 120 seconds. [34680.374333] INFO: task mozStorage #5:1827 blocked for more than 120 seconds. [34680.374923] INFO: task SimpleCacheWork:7848 blocked for more than 120 seconds. [34680.375453] INFO: task mozStorage #1:7969 blocked for more than 120 seconds. [34680.375996] INFO: task mozStorage #3:7978 blocked for more than 120 seconds. [34680.376647] INFO: task svn:2509 blocked for more than 120 seconds. please see below for details: [ 8892.495156] perf: interrupt took too long (3167 > 3126), lowering kernel.perf_event_max_sample_rate to 63000 [13485.210900] perf: interrupt took too long (3959 > 3958), lowering kernel.perf_event_max_sample_rate to 50500 [22505.233194] perf: interrupt took too long (4961 > 4948), lowering kernel.perf_event_max_sample_rate to 40250 [34680.372631] INFO: task Cache2 I/O:1738 blocked for more than 120 seconds. [34680.372644] Not tainted 4.12.0-2+reiser4.0.1-amd64 #1 Debian 4.12.14-2+reiser4.0.1 [34680.372647] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [34680.372652] Cache2 I/O D 0 1738 1663 0x00000000 [34680.372659] Call Trace: [34680.372675] ? __schedule+0x3c5/0x850 [34680.372680] ? schedule+0x32/0x80 [34680.372721] ? reiser4_go_to_sleep+0x5d/0x90 [reiser4] [34680.372729] ? remove_wait_queue+0x60/0x60 [34680.372761] ? capture_fuse_wait.part.28+0x228/0x240 [reiser4] [34680.372789] ? atom_can_be_committed.part.14+0x10/0x10 [reiser4] [34680.372816] ? reiser4_try_capture+0x55b/0xc00 [reiser4] [34680.372841] ? capture_assign_txnh_nolock+0x53/0x80 [reiser4] [34680.372867] ? longterm_lock_znode+0x161/0x4f0 [reiser4] [34680.372896] ? traverse_tree+0x821/0xa50 [reiser4] [34680.372921] ? longterm_lock_znode+0x486/0x4f0 [reiser4] [34680.372945] ? lock_object+0x96/0x100 [reiser4] [34680.372971] ? cbk_cache_search+0xc6/0x2e0 [reiser4] [34680.372996] ? coord_by_key+0xdd/0xf0 [reiser4] [34680.373032] ? find_cluster_item.constprop.69+0x2dd/0x430 [reiser4] [34680.373065] ? save_plugin_sd.part.5+0x3f/0xf0 [reiser4] [34680.373093] ? reiser4_grab+0x48/0xc0 [reiser4] [34680.373124] ? find_disk_cluster+0x130/0x3a0 [reiser4] [34680.373153] ? prepare_logical_cluster+0x35d/0x880 [reiser4] [34680.373180] ? set_window_and_cluster+0x9c/0x130 [reiser4] [34680.373205] ? do_write_cryptcompress+0x380/0x690 [reiser4] [34680.373211] ? down_read+0xe/0x30 [34680.373238] ? write_cryptcompress+0x6d/0xb0 [reiser4] [34680.373265] ? reiser4_write_dispatch+0xf2/0x4f0 [reiser4] [34680.373272] ? vfs_statx+0x73/0xe0 [34680.373279] ? vfs_write+0xb0/0x190 [34680.373282] ? SyS_write+0x52/0xc0 [34680.373288] ? system_call_fast_compare_end+0xc/0x97 [34680.373300] INFO: task localStorage DB:1816 blocked for more than 120 seconds. [34680.373305] Not tainted 4.12.0-2+reiser4.0.1-amd64 #1 Debian 4.12.14-2+reiser4.0.1 [34680.373308] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [34680.373311] localStorage DB D 0 1816 1663 0x00000000 [34680.373316] Call Trace: [34680.373321] ? __schedule+0x3c5/0x850 [34680.373325] ? schedule+0x32/0x80 [34680.373351] ? reiser4_go_to_sleep+0x5d/0x90 [reiser4] [34680.373355] ? remove_wait_queue+0x60/0x60 [34680.373383] ? capture_fuse_wait.part.28+0x228/0x240 [reiser4] [34680.373409] ? atom_can_be_committed.part.14+0x10/0x10 [reiser4] [34680.373435] ? reiser4_try_capture+0x55b/0xc00 [reiser4] [34680.373464] ? lookup_node40+0x298/0x460 [reiser4] [34680.373490] ? longterm_lock_znode+0x161/0x4f0 [reiser4] [34680.373517] ? cbk_node_lookup+0x127/0x380 [reiser4] [34680.373542] ? traverse_tree+0x821/0xa50 [reiser4] [34680.373565] ? find_child_delimiting_keys+0xef/0x110 [reiser4] [34680.373588] ? traverse_tree+0x73d/0xa50 [reiser4] [34680.373610] ? cbk_cache_search+0xc6/0x2e0 [reiser4] [34680.373634] ? coord_by_key+0xdd/0xf0 [reiser4] [34680.373656] ? cbk_cache_search+0xc6/0x2e0 [reiser4] [34680.373687] ? find_cluster_item.constprop.69+0x2dd/0x430 [reiser4] [34680.373715] ? save_plugin_sd.part.5+0x3f/0xf0 [reiser4] [34680.373743] ? reiser4_grab+0x48/0xc0 [reiser4] [34680.373770] ? find_disk_cluster+0x130/0x3a0 [reiser4] [34680.373796] ? prepare_logical_cluster+0x35d/0x880 [reiser4] [34680.373822] ? set_window_and_cluster+0x9c/0x130 [reiser4] [34680.373846] ? do_write_cryptcompress+0x380/0x690 [reiser4] [34680.373873] ? write_cryptcompress+0x6d/0xb0 [reiser4] [34680.373900] ? reiser4_write_dispatch+0xf2/0x4f0 [reiser4] [34680.373907] ? vfs_write+0xb0/0x190 [34680.373910] ? SyS_write+0x52/0xc0 [34680.373916] ? system_call_fast_compare_end+0xc/0x97 [34680.373921] INFO: task mozStorage #4:1822 blocked for more than 120 seconds. [34680.373925] Not tainted 4.12.0-2+reiser4.0.1-amd64 #1 Debian 4.12.14-2+reiser4.0.1 [34680.373928] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [34680.373931] mozStorage #4 D 0 1822 1663 0x00000000 [34680.373935] Call Trace: [34680.373940] ? __schedule+0x3c5/0x850 [34680.373944] ? schedule+0x32/0x80 [34680.373969] ? reiser4_go_to_sleep+0x5d/0x90 [reiser4] [34680.373973] ? remove_wait_queue+0x60/0x60 [34680.374001] ? capture_fuse_wait.part.28+0x228/0x240 [reiser4] [34680.374028] ? atom_can_be_committed.part.14+0x10/0x10 [reiser4] [34680.374054] ? reiser4_try_capture+0x55b/0xc00 [reiser4] [34680.374080] ? longterm_lock_znode+0x453/0x4f0 [reiser4] [34680.374109] ? reiser4_seal_validate+0x60/0xe0 [reiser4] [34680.374140] ? update_sd+0x16d/0x470 [reiser4] [34680.374169] ? write_sd_by_inode_common+0x8c/0x90 [reiser4] [34680.374200] ? reiser4_dirty_inode+0x3e/0xd0 [reiser4] [34680.374205] ? __mark_inode_dirty+0x165/0x340 [34680.374210] ? generic_update_time+0x7b/0xd0 [34680.374214] ? current_time+0x38/0x70 [34680.374218] ? touch_atime+0xab/0xd0 [34680.374223] ? generic_file_read_iter+0x7ee/0x950 [34680.374231] ? new_sync_read+0xd7/0x120 [34680.374261] ? read_unix_file+0x445/0x4d0 [reiser4] [34680.374287] ? read_cryptcompress+0x7c/0xa0 [reiser4] [34680.374314] ? reiser4_read_dispatch+0x59/0x130 [reiser4] [34680.374320] ? vfs_read+0x91/0x130 [34680.374323] ? SyS_read+0x52/0xc0 [34680.374329] ? system_call_fast_compare_end+0xc/0x97 [34680.374333] INFO: task mozStorage #5:1827 blocked for more than 120 seconds. [34680.374337] Not tainted 4.12.0-2+reiser4.0.1-amd64 #1 Debian 4.12.14-2+reiser4.0.1 [34680.374340] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [34680.374343] mozStorage #5 D 0 1827 1663 0x00000000 [34680.374347] Call Trace: [34680.374352] ? __schedule+0x3c5/0x850 [34680.374355] ? __schedule+0x3cd/0x850 [34680.374359] ? schedule+0x32/0x80 [34680.374384] ? reiser4_go_to_sleep+0x5d/0x90 [reiser4] [34680.374388] ? remove_wait_queue+0x60/0x60 [34680.374416] ? capture_fuse_wait.part.28+0x228/0x240 [reiser4] [34680.374442] ? atom_can_be_committed.part.14+0x10/0x10 [reiser4] [34680.374468] ? reiser4_try_capture+0x55b/0xc00 [reiser4] [34680.374494] ? longterm_lock_znode+0x161/0x4f0 [reiser4] [34680.374521] ? traverse_tree+0x821/0xa50 [reiser4] [34680.374545] ? longterm_lock_znode+0x486/0x4f0 [reiser4] [34680.374569] ? lock_object+0x96/0x100 [reiser4] [34680.374595] ? cbk_cache_search+0xc6/0x2e0 [reiser4] [34680.374619] ? coord_by_key+0xdd/0xf0 [reiser4] [34680.374650] ? find_cluster_item.constprop.69+0x2dd/0x430 [reiser4] [34680.374679] ? save_plugin_sd.part.5+0x3f/0xf0 [reiser4] [34680.374685] ? intel_pstate_update_pstate.part.5+0x21/0x30 [34680.374691] ? intel_pstate_adjust_pstate+0xa5/0x1e0 [34680.374718] ? reiser4_grab+0x48/0xc0 [reiser4] [34680.374745] ? find_disk_cluster+0x130/0x3a0 [reiser4] [34680.374771] ? prepare_logical_cluster+0x35d/0x880 [reiser4] [34680.374797] ? set_window_and_cluster+0x9c/0x130 [reiser4] [34680.374821] ? do_write_cryptcompress+0x380/0x690 [reiser4] [34680.374847] ? write_cryptcompress+0x6d/0xb0 [reiser4] [34680.374874] ? reiser4_write_dispatch+0xf2/0x4f0 [reiser4] [34680.374881] ? vfs_write+0xb0/0x190 [34680.374884] ? SyS_write+0x52/0xc0 [34680.374890] ? system_call_fast_compare_end+0xc/0x97 [34680.374923] INFO: task SimpleCacheWork:7848 blocked for more than 120 seconds. [34680.374927] Not tainted 4.12.0-2+reiser4.0.1-amd64 #1 Debian 4.12.14-2+reiser4.0.1 [34680.374930] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [34680.374933] SimpleCacheWork D 0 7848 1663 0x00000000 [34680.374937] Call Trace: [34680.374941] ? __schedule+0x3c5/0x850 [34680.374945] ? schedule+0x32/0x80 [34680.374970] ? reiser4_go_to_sleep+0x5d/0x90 [reiser4] [34680.374975] ? remove_wait_queue+0x60/0x60 [34680.375002] ? capture_fuse_wait.part.28+0x228/0x240 [reiser4] [34680.375029] ? atom_can_be_committed.part.14+0x10/0x10 [reiser4] [34680.375054] ? reiser4_try_capture+0x55b/0xc00 [reiser4] [34680.375079] ? lock_object+0x96/0x100 [reiser4] [34680.375104] ? longterm_lock_znode+0x161/0x4f0 [reiser4] [34680.375126] ? zlook+0x15/0x70 [reiser4] [34680.375150] ? longterm_unlock_znode+0xbf/0x2a0 [reiser4] [34680.375176] ? traverse_tree+0x821/0xa50 [reiser4] [34680.375202] ? cbk_node_lookup+0x44/0x380 [reiser4] [34680.375225] ? cbk_cache_search+0xc6/0x2e0 [reiser4] [34680.375250] ? reiser4_object_lookup+0x151/0x160 [reiser4] [34680.375272] ? cbk_cache_search+0x1d0/0x2e0 [reiser4] [34680.375303] ? reiser4_find_entry+0xaf/0x330 [reiser4] [34680.375330] ? reiser4_lookup_name+0x8d/0x140 [reiser4] [34680.375362] ? reiser4_lookup_common+0x63/0x140 [reiser4] [34680.375367] ? lookup_slow+0xa3/0x170 [34680.375371] ? walk_component+0x1c0/0x350 [34680.375375] ? path_init+0x1bd/0x300 [34680.375379] ? path_lookupat+0x73/0x220 [34680.375383] ? filename_lookup+0xb8/0x1a0 [34680.375392] ? futex_wake+0x94/0x170 [34680.375397] ? __check_object_size+0xb3/0x18e [34680.375403] ? strncpy_from_user+0x48/0x160 [34680.375408] ? vfs_statx+0x73/0xe0 [34680.375412] ? vfs_statx+0x73/0xe0 [34680.375418] ? SYSC_newlstat+0x39/0x70 [34680.375421] ? SyS_futex+0x7a/0x170 [34680.375424] ? SyS_write+0x76/0xc0 [34680.375430] ? system_call_fast_compare_end+0xc/0x97 [34680.375453] INFO: task mozStorage #1:7969 blocked for more than 120 seconds. [34680.375457] Not tainted 4.12.0-2+reiser4.0.1-amd64 #1 Debian 4.12.14-2+reiser4.0.1 [34680.375460] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [34680.375463] mozStorage #1 D 0 7969 1663 0x00000000 [34680.375467] Call Trace: [34680.375472] ? __schedule+0x3c5/0x850 [34680.375476] ? schedule+0x32/0x80 [34680.375501] ? reiser4_go_to_sleep+0x5d/0x90 [reiser4] [34680.375505] ? remove_wait_queue+0x60/0x60 [34680.375533] ? capture_fuse_wait.part.28+0x228/0x240 [reiser4] [34680.375560] ? atom_can_be_committed.part.14+0x10/0x10 [reiser4] [34680.375585] ? reiser4_try_capture+0x55b/0xc00 [reiser4] [34680.375611] ? longterm_lock_znode+0x161/0x4f0 [reiser4] [34680.375636] ? traverse_tree+0x821/0xa50 [reiser4] [34680.375660] ? longterm_lock_znode+0x486/0x4f0 [reiser4] [34680.375684] ? lock_object+0x96/0x100 [reiser4] [34680.375708] ? cbk_cache_search+0xc6/0x2e0 [reiser4] [34680.375732] ? coord_by_key+0xdd/0xf0 [reiser4] [34680.375763] ? find_cluster_item.constprop.69+0x2dd/0x430 [reiser4] [34680.375791] ? save_plugin_sd.part.5+0x3f/0xf0 [reiser4] [34680.375819] ? reiser4_grab+0x48/0xc0 [reiser4] [34680.375846] ? find_disk_cluster+0x130/0x3a0 [reiser4] [34680.375872] ? prepare_logical_cluster+0x35d/0x880 [reiser4] [34680.375898] ? set_window_and_cluster+0x9c/0x130 [reiser4] [34680.375922] ? do_write_cryptcompress+0x380/0x690 [reiser4] [34680.375948] ? write_cryptcompress+0x6d/0xb0 [reiser4] [34680.375975] ? reiser4_write_dispatch+0xf2/0x4f0 [reiser4] [34680.375982] ? vfs_write+0xb0/0x190 [34680.375985] ? SyS_write+0x52/0xc0 [34680.375991] ? system_call_fast_compare_end+0xc/0x97 [34680.375996] INFO: task mozStorage #3:7978 blocked for more than 120 seconds. [34680.376000] Not tainted 4.12.0-2+reiser4.0.1-amd64 #1 Debian 4.12.14-2+reiser4.0.1 [34680.376003] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [34680.376006] mozStorage #3 D 0 7978 1663 0x00000000 [34680.376010] Call Trace: [34680.376015] ? __schedule+0x3c5/0x850 [34680.376019] ? schedule+0x32/0x80 [34680.376044] ? reiser4_go_to_sleep+0x5d/0x90 [reiser4] [34680.376048] ? remove_wait_queue+0x60/0x60 [34680.376075] ? capture_fuse_wait.part.28+0x228/0x240 [reiser4] [34680.376102] ? atom_can_be_committed.part.14+0x10/0x10 [reiser4] [34680.376127] ? reiser4_try_capture+0x55b/0xc00 [reiser4] [34680.376153] ? cbk_cache_add+0xa0/0xd0 [reiser4] [34680.376179] ? capture_assign_txnh_nolock+0x53/0x80 [reiser4] [34680.376204] ? longterm_lock_znode+0x161/0x4f0 [reiser4] [34680.376229] ? traverse_tree+0x821/0xa50 [reiser4] [34680.376253] ? longterm_lock_znode+0x486/0x4f0 [reiser4] [34680.376277] ? lock_object+0x96/0x100 [reiser4] [34680.376301] ? cbk_cache_search+0xc6/0x2e0 [reiser4] [34680.376325] ? coord_by_key+0xdd/0xf0 [reiser4] [34680.376356] ? find_cluster_item.constprop.69+0x2dd/0x430 [reiser4] [34680.376384] ? save_plugin_sd.part.5+0x3f/0xf0 [reiser4] [34680.376390] ? intel_pstate_update_pstate.part.5+0x21/0x30 [34680.376395] ? intel_pstate_adjust_pstate+0xa5/0x1e0 [34680.376422] ? reiser4_grab+0x48/0xc0 [reiser4] [34680.376450] ? find_disk_cluster+0x130/0x3a0 [reiser4] [34680.376476] ? prepare_logical_cluster+0x35d/0x880 [reiser4] [34680.376534] ? set_window_and_cluster+0x9c/0x130 [reiser4] [34680.376558] ? do_write_cryptcompress+0x380/0x690 [reiser4] [34680.376595] ? write_cryptcompress+0x6d/0xb0 [reiser4] [34680.376612] ? reiser4_write_dispatch+0xf2/0x4f0 [reiser4] [34680.376619] ? vfs_write+0xb0/0x190 [34680.376628] ? SyS_write+0x52/0xc0 [34680.376634] ? system_call_fast_compare_end+0xc/0x97 [34680.376647] INFO: task svn:2509 blocked for more than 120 seconds. [34680.376654] Not tainted 4.12.0-2+reiser4.0.1-amd64 #1 Debian 4.12.14-2+reiser4.0.1 [34680.376659] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [34680.376665] svn D 0 2509 5552 0x00000000 [34680.376672] Call Trace: [34680.376677] ? __schedule+0x3c5/0x850 [34680.376683] ? schedule+0x32/0x80 [34680.376700] ? reiser4_go_to_sleep+0x5d/0x90 [reiser4] [34680.376706] ? remove_wait_queue+0x60/0x60 [34680.376723] ? capture_fuse_wait.part.28+0x228/0x240 [reiser4] [34680.376741] ? atom_can_be_committed.part.14+0x10/0x10 [reiser4] [34680.376759] ? reiser4_try_capture+0x55b/0xc00 [reiser4] [34680.376765] ? update_group_capacity+0x23/0x1e0 [34680.376771] ? cpumask_next_and+0x26/0x40 [34680.376788] ? longterm_lock_znode+0x453/0x4f0 [reiser4] [34680.376806] ? cbk_cache_search+0x10f/0x2e0 [reiser4] [34680.376825] ? coord_by_key+0xb1/0xf0 [reiser4] [34680.376844] ? find_cluster_item.constprop.69+0x2dd/0x430 [reiser4] [34680.376852] ? __add_to_page_cache_locked+0xf5/0x1f0 [34680.376870] ? reiser4_grab+0x48/0xc0 [reiser4] [34680.376888] ? find_disk_cluster+0x130/0x3a0 [reiser4] [34680.376907] ? prepare_logical_cluster+0x35d/0x880 [reiser4] [34680.376924] ? set_window_and_cluster+0x9c/0x130 [reiser4] [34680.376940] ? do_write_cryptcompress+0x380/0x690 [reiser4] [34680.376948] ? tcp_v4_do_rcv+0x12f/0x1d0 [34680.376966] ? write_cryptcompress+0x6d/0xb0 [reiser4] [34680.376983] ? reiser4_write_dispatch+0xf2/0x4f0 [reiser4] [34680.376991] ? vfs_write+0xb0/0x190 [34680.376996] ? SyS_write+0x52/0xc0 [34680.377002] ? exit_to_usermode_loop+0x61/0xc0 [34680.377007] ? system_call_fast_compare_end+0xc/0x97 Best Professional Regards. -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html