7c8b7fe0f3
There existed a race condition between when a Direct I/O write could complete and if a sync operation was issued. This was due to the fact that a Direct I/O would sleep waiting on previous TXG's to sync out their dirty records assosciated with a dbuf if there was an ARC buffer associated with the dbuf. This was necessay to safely destroy the ARC buffer in case previous dirty records dr_data as pointed at that the db_buf. The main issue with this approach is a Direct I/o write holds the rangelock across the entire block, so when a sync on that same block was issued and tried to grab the rangelock as reader, it would be blocked indefinitely because the Direct I/O that was now sleeping was holding that same rangelock as writer. This led to a complete deadlock. This commit fixes this issue and removes the wait in dmu_write_direct_done(). The way this is now handled is the ARC buffer is destroyed, if there an associated one with dbuf, before ever issuing the Direct I/O write. This implemenation heavily borrows from the block cloning implementation. A new function dmu_buf_wil_clone_or_dio() is called in both dmu_write_direct() and dmu_brt_clone() that does the following: 1. Undirties a dirty record for that db if there one currently associated with the current TXG. 2. Destroys the ARC buffer if the previous dirty record dr_data does not point at the dbufs ARC buffer (db_buf). 3. Sets the dbufs data pointers to NULL. 4. Redirties the dbuf using db_state = DB_NOFILL. As part of this commit, the dmu_write_direct_done() function was also cleaned up. Now dmu_sync_done() is called before undirtying the dbuf dirty record associated with a failed Direct I/O write. This is correct logic and how it always should have been. The additional benefits of these modifications is there is no longer a stall in a Direct I/O write if the user is mixing bufferd and O_DIRECT together. Also it unifies the block cloning and Direct I/O write path as they both need to call dbuf_fix_old_data() before destroying the ARC buffer. As part of this commit, there is also just general code cleanup. Various dbuf stats were removed because they are not necesary any longer. Additionally, useless functions were removed to make the code paths cleaner for Direct I/O. Below is the race condtion stack trace that was being consistently observed in the CI runs for the dio_random test case that prompted these changes: trace: [ 7795.294473] sd 0:0:0:0: [sda] Synchronizing SCSI cache [ 9954.769075] INFO: task z_wr_int:1051869 blocked for more than 120 seconds. [ 9954.770512] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [ 9954.772159] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 9954.773848] task:z_wr_int state:D stack:0 pid:1051869 ppid:2 flags:0x80004080 [ 9954.775512] Call Trace: [ 9954.776406] __schedule+0x2d1/0x870 [ 9954.777386] ? free_one_page+0x204/0x530 [ 9954.778466] schedule+0x55/0xf0 [ 9954.779355] cv_wait_common+0x16d/0x280 [spl] [ 9954.780491] ? finish_wait+0x80/0x80 [ 9954.781450] dmu_buf_direct_mixed_io_wait+0x84/0x1a0 [zfs] [ 9954.782889] dmu_write_direct_done+0x90/0x3b0 [zfs] [ 9954.784255] zio_done+0x373/0x1d50 [zfs] [ 9954.785410] zio_execute+0xee/0x210 [zfs] [ 9954.786588] taskq_thread+0x205/0x3f0 [spl] [ 9954.787673] ? wake_up_q+0x60/0x60 [ 9954.788571] ? zio_execute_stack_check.constprop.1+0x10/0x10 [zfs] [ 9954.790079] ? taskq_lowest_id+0xc0/0xc0 [spl] [ 9954.791199] kthread+0x134/0x150 [ 9954.792082] ? set_kthread_struct+0x50/0x50 [ 9954.793189] ret_from_fork+0x35/0x40 [ 9954.794108] INFO: task txg_sync:1051894 blocked for more than 120 seconds. [ 9954.795535] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [ 9954.797103] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 9954.798669] task:txg_sync state:D stack:0 pid:1051894 ppid:2 flags:0x80004080 [ 9954.800267] Call Trace: [ 9954.801096] __schedule+0x2d1/0x870 [ 9954.801972] ? __wake_up_common+0x7a/0x190 [ 9954.802963] schedule+0x55/0xf0 [ 9954.803884] schedule_timeout+0x19f/0x320 [ 9954.804837] ? __next_timer_interrupt+0xf0/0xf0 [ 9954.805932] ? taskq_dispatch+0xab/0x280 [spl] [ 9954.806959] io_schedule_timeout+0x19/0x40 [ 9954.807989] __cv_timedwait_common+0x19e/0x2c0 [spl] [ 9954.809110] ? finish_wait+0x80/0x80 [ 9954.810068] __cv_timedwait_io+0x15/0x20 [spl] [ 9954.811103] zio_wait+0x1ad/0x4f0 [zfs] [ 9954.812255] dsl_pool_sync+0xcb/0x6c0 [zfs] [ 9954.813442] ? spa_errlog_sync+0x2f0/0x3d0 [zfs] [ 9954.814648] spa_sync_iterate_to_convergence+0xcb/0x310 [zfs] [ 9954.816023] spa_sync+0x362/0x8f0 [zfs] [ 9954.817110] txg_sync_thread+0x27a/0x3b0 [zfs] [ 9954.818267] ? txg_dispatch_callbacks+0xf0/0xf0 [zfs] [ 9954.819510] ? spl_assert.constprop.0+0x20/0x20 [spl] [ 9954.820643] thread_generic_wrapper+0x63/0x90 [spl] [ 9954.821709] kthread+0x134/0x150 [ 9954.822590] ? set_kthread_struct+0x50/0x50 [ 9954.823584] ret_from_fork+0x35/0x40 [ 9954.824444] INFO: task fio:1055501 blocked for more than 120 seconds. [ 9954.825781] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [ 9954.827315] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 9954.828871] task:fio state:D stack:0 pid:1055501 ppid:1055490 flags:0x00004080 [ 9954.830463] Call Trace: [ 9954.831280] __schedule+0x2d1/0x870 [ 9954.832159] ? dbuf_hold_copy+0xec/0x230 [zfs] [ 9954.833396] schedule+0x55/0xf0 [ 9954.834286] cv_wait_common+0x16d/0x280 [spl] [ 9954.835291] ? finish_wait+0x80/0x80 [ 9954.836235] zfs_rangelock_enter_reader+0xa1/0x1f0 [zfs] [ 9954.837543] zfs_rangelock_enter_impl+0xbf/0x1b0 [zfs] [ 9954.838838] zfs_get_data+0x566/0x810 [zfs] [ 9954.840034] zil_lwb_commit+0x194/0x3f0 [zfs] [ 9954.841154] zil_lwb_write_issue+0x68/0xb90 [zfs] [ 9954.842367] ? __list_add+0x12/0x30 [zfs] [ 9954.843496] ? __raw_spin_unlock+0x5/0x10 [zfs] [ 9954.844665] ? zil_alloc_lwb+0x217/0x360 [zfs] [ 9954.845852] zil_commit_waiter_timeout+0x1f3/0x570 [zfs] [ 9954.847203] zil_commit_waiter+0x1d2/0x3b0 [zfs] [ 9954.848380] zil_commit_impl+0x6d/0xd0 [zfs] [ 9954.849550] zfs_fsync+0x66/0x90 [zfs] [ 9954.850640] zpl_fsync+0xe5/0x140 [zfs] [ 9954.851729] do_fsync+0x38/0x70 [ 9954.852585] __x64_sys_fsync+0x10/0x20 [ 9954.853486] do_syscall_64+0x5b/0x1b0 [ 9954.854416] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 9954.855466] RIP: 0033:0x7eff236bb057 [ 9954.856388] Code: Unable to access opcode bytes at RIP 0x7eff236bb02d. [ 9954.857651] RSP: 002b:00007ffffb8e5320 EFLAGS: 00000293 ORIG_RAX: 000000000000004a [ 9954.859141] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007eff236bb057 [ 9954.860496] RDX: 0000000000000000 RSI: 000055e4d1f13ac0 RDI: 0000000000000006 [ 9954.861945] RBP: 00007efeb8ed8000 R08: 0000000000000000 R09: 0000000000000000 [ 9954.863327] R10: 0000000000056000 R11: 0000000000000293 R12: 0000000000000003 [ 9954.864765] R13: 000055e4d1f13ac0 R14: 0000000000000000 R15: 000055e4d1f13ae8 [ 9954.866149] INFO: task fio:1055502 blocked for more than 120 seconds. [ 9954.867490] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [ 9954.869029] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 9954.870571] task:fio state:D stack:0 pid:1055502 ppid:1055490 flags:0x00004080 [ 9954.872162] Call Trace: [ 9954.872947] __schedule+0x2d1/0x870 [ 9954.873844] schedule+0x55/0xf0 [ 9954.874716] schedule_timeout+0x19f/0x320 [ 9954.875645] ? __next_timer_interrupt+0xf0/0xf0 [ 9954.876722] io_schedule_timeout+0x19/0x40 [ 9954.877677] __cv_timedwait_common+0x19e/0x2c0 [spl] [ 9954.878822] ? finish_wait+0x80/0x80 [ 9954.879694] __cv_timedwait_io+0x15/0x20 [spl] [ 9954.880763] zio_wait+0x1ad/0x4f0 [zfs] [ 9954.881865] dmu_write_abd+0x174/0x1c0 [zfs] [ 9954.883074] dmu_write_uio_direct+0x79/0x100 [zfs] [ 9954.884285] dmu_write_uio_dnode+0xb2/0x320 [zfs] [ 9954.885507] dmu_write_uio_dbuf+0x47/0x60 [zfs] [ 9954.886687] zfs_write+0x581/0xe20 [zfs] [ 9954.887822] ? iov_iter_get_pages+0xe9/0x390 [ 9954.888862] ? trylock_page+0xd/0x20 [zfs] [ 9954.890005] ? __raw_spin_unlock+0x5/0x10 [zfs] [ 9954.891217] ? zfs_setup_direct+0x7e/0x1b0 [zfs] [ 9954.892391] zpl_iter_write_direct+0xd4/0x170 [zfs] [ 9954.893663] ? rrw_exit+0xc6/0x200 [zfs] [ 9954.894764] zpl_iter_write+0xd5/0x110 [zfs] [ 9954.895911] new_sync_write+0x112/0x160 [ 9954.896881] vfs_write+0xa5/0x1b0 [ 9954.897701] ksys_write+0x4f/0xb0 [ 9954.898569] do_syscall_64+0x5b/0x1b0 [ 9954.899417] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 9954.900515] RIP: 0033:0x7eff236baa47 [ 9954.901363] Code: Unable to access opcode bytes at RIP 0x7eff236baa1d. [ 9954.902673] RSP: 002b:00007ffffb8e5330 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 9954.904099] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007eff236baa47 [ 9954.905535] RDX: 00000000000e4000 RSI: 00007efeb7dd4000 RDI: 0000000000000005 [ 9954.906902] RBP: 00007efeb7dd4000 R08: 0000000000000000 R09: 0000000000000000 [ 9954.908339] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000e4000 [ 9954.909705] R13: 000055e4d1f13ac0 R14: 00000000000e4000 R15: 000055e4d1f13ae8 [ 9954.911129] INFO: task fio:1055504 blocked for more than 120 seconds. [ 9954.912381] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [ 9954.913978] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 9954.915434] task:fio state:D stack:0 pid:1055504 ppid:1055493 flags:0x00000080 [ 9954.917082] Call Trace: [ 9954.917773] __schedule+0x2d1/0x870 [ 9954.918648] ? zilog_dirty+0x4f/0xc0 [zfs] [ 9954.919831] schedule+0x55/0xf0 [ 9954.920717] cv_wait_common+0x16d/0x280 [spl] [ 9954.921704] ? finish_wait+0x80/0x80 [ 9954.922639] zfs_rangelock_enter_writer+0x46/0x1c0 [zfs] [ 9954.923940] zfs_rangelock_enter_impl+0x12a/0x1b0 [zfs] [ 9954.925306] zfs_write+0x703/0xe20 [zfs] [ 9954.926406] zpl_iter_write_buffered+0xb2/0x120 [zfs] [ 9954.927687] ? rrw_exit+0xc6/0x200 [zfs] [ 9954.928821] zpl_iter_write+0xbe/0x110 [zfs] [ 9954.930028] new_sync_write+0x112/0x160 [ 9954.930913] vfs_write+0xa5/0x1b0 [ 9954.931758] ksys_write+0x4f/0xb0 [ 9954.932666] do_syscall_64+0x5b/0x1b0 [ 9954.933544] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 9954.934689] RIP: 0033:0x7fcaee8f0a47 [ 9954.935551] Code: Unable to access opcode bytes at RIP 0x7fcaee8f0a1d. [ 9954.936893] RSP: 002b:00007fff56b2c240 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 9954.938327] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fcaee8f0a47 [ 9954.939777] RDX: 000000000001d000 RSI: 00007fca8300b010 RDI: 0000000000000006 [ 9954.941187] RBP: 00007fca8300b010 R08: 0000000000000000 R09: 0000000000000000 [ 9954.942655] R10: 0000000000000000 R11: 0000000000000293 R12: 000000000001d000 [ 9954.944062] R13: 0000557a2006bac0 R14: 000000000001d000 R15: 0000557a2006bae8 [ 9954.945525] INFO: task fio:1055505 blocked for more than 120 seconds. [ 9954.946819] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [ 9954.948466] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 9954.949959] task:fio state:D stack:0 pid:1055505 ppid:1055493 flags:0x00004080 [ 9954.951653] Call Trace: [ 9954.952417] __schedule+0x2d1/0x870 [ 9954.953393] ? finish_wait+0x3e/0x80 [ 9954.954315] schedule+0x55/0xf0 [ 9954.955212] cv_wait_common+0x16d/0x280 [spl] [ 9954.956211] ? finish_wait+0x80/0x80 [ 9954.957159] zil_commit_waiter+0xfa/0x3b0 [zfs] [ 9954.958343] zil_commit_impl+0x6d/0xd0 [zfs] [ 9954.959524] zfs_fsync+0x66/0x90 [zfs] [ 9954.960626] zpl_fsync+0xe5/0x140 [zfs] [ 9954.961763] do_fsync+0x38/0x70 [ 9954.962638] __x64_sys_fsync+0x10/0x20 [ 9954.963520] do_syscall_64+0x5b/0x1b0 [ 9954.964470] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 9954.965567] RIP: 0033:0x7fcaee8f1057 [ 9954.966490] Code: Unable to access opcode bytes at RIP 0x7fcaee8f102d. [ 9954.967752] RSP: 002b:00007fff56b2c230 EFLAGS: 00000293 ORIG_RAX: 000000000000004a [ 9954.969260] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fcaee8f1057 [ 9954.970628] RDX: 0000000000000000 RSI: 0000557a2006bac0 RDI: 0000000000000005 [ 9954.972092] RBP: 00007fca84152a18 R08: 0000000000000000 R09: 0000000000000000 [ 9954.973484] R10: 0000000000035000 R11: 0000000000000293 R12: 0000000000000003 [ 9954.974958] R13: 0000557a2006bac0 R14: 0000000000000000 R15: 0000557a2006bae8 [10077.648150] INFO: task z_wr_int:1051869 blocked for more than 120 seconds. [10077.649541] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [10077.651116] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10077.652782] task:z_wr_int state:D stack:0 pid:1051869 ppid:2 flags:0x80004080 [10077.654420] Call Trace: [10077.655267] __schedule+0x2d1/0x870 [10077.656179] ? free_one_page+0x204/0x530 [10077.657192] schedule+0x55/0xf0 [10077.658004] cv_wait_common+0x16d/0x280 [spl] [10077.659018] ? finish_wait+0x80/0x80 [10077.660013] dmu_buf_direct_mixed_io_wait+0x84/0x1a0 [zfs] [10077.661396] dmu_write_direct_done+0x90/0x3b0 [zfs] [10077.662617] zio_done+0x373/0x1d50 [zfs] [10077.663783] zio_execute+0xee/0x210 [zfs] [10077.664921] taskq_thread+0x205/0x3f0 [spl] [10077.665982] ? wake_up_q+0x60/0x60 [10077.666842] ? zio_execute_stack_check.constprop.1+0x10/0x10 [zfs] [10077.668295] ? taskq_lowest_id+0xc0/0xc0 [spl] [10077.669360] kthread+0x134/0x150 [10077.670191] ? set_kthread_struct+0x50/0x50 [10077.671209] ret_from_fork+0x35/0x40 [10077.672076] INFO: task txg_sync:1051894 blocked for more than 120 seconds. [10077.673467] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [10077.675112] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10077.676612] task:txg_sync state:D stack:0 pid:1051894 ppid:2 flags:0x80004080 [10077.678288] Call Trace: [10077.679024] __schedule+0x2d1/0x870 [10077.679948] ? __wake_up_common+0x7a/0x190 [10077.681042] schedule+0x55/0xf0 [10077.681899] schedule_timeout+0x19f/0x320 [10077.682951] ? __next_timer_interrupt+0xf0/0xf0 [10077.684005] ? taskq_dispatch+0xab/0x280 [spl] [10077.685085] io_schedule_timeout+0x19/0x40 [10077.686080] __cv_timedwait_common+0x19e/0x2c0 [spl] [10077.687227] ? finish_wait+0x80/0x80 [10077.688123] __cv_timedwait_io+0x15/0x20 [spl] [10077.689206] zio_wait+0x1ad/0x4f0 [zfs] [10077.690300] dsl_pool_sync+0xcb/0x6c0 [zfs] [10077.691435] ? spa_errlog_sync+0x2f0/0x3d0 [zfs] [10077.692636] spa_sync_iterate_to_convergence+0xcb/0x310 [zfs] [10077.693997] spa_sync+0x362/0x8f0 [zfs] [10077.695112] txg_sync_thread+0x27a/0x3b0 [zfs] [10077.696239] ? txg_dispatch_callbacks+0xf0/0xf0 [zfs] [10077.697512] ? spl_assert.constprop.0+0x20/0x20 [spl] [10077.698639] thread_generic_wrapper+0x63/0x90 [spl] [10077.699687] kthread+0x134/0x150 [10077.700567] ? set_kthread_struct+0x50/0x50 [10077.701502] ret_from_fork+0x35/0x40 [10077.702430] INFO: task fio:1055501 blocked for more than 120 seconds. [10077.703697] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [10077.705309] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10077.706780] task:fio state:D stack:0 pid:1055501 ppid:1055490 flags:0x00004080 [10077.708479] Call Trace: [10077.709231] __schedule+0x2d1/0x870 [10077.710190] ? dbuf_hold_copy+0xec/0x230 [zfs] [10077.711368] schedule+0x55/0xf0 [10077.712286] cv_wait_common+0x16d/0x280 [spl] [10077.713316] ? finish_wait+0x80/0x80 [10077.714262] zfs_rangelock_enter_reader+0xa1/0x1f0 [zfs] [10077.715566] zfs_rangelock_enter_impl+0xbf/0x1b0 [zfs] [10077.716878] zfs_get_data+0x566/0x810 [zfs] [10077.718032] zil_lwb_commit+0x194/0x3f0 [zfs] [10077.719234] zil_lwb_write_issue+0x68/0xb90 [zfs] [10077.720413] ? __list_add+0x12/0x30 [zfs] [10077.721525] ? __raw_spin_unlock+0x5/0x10 [zfs] [10077.722708] ? zil_alloc_lwb+0x217/0x360 [zfs] [10077.723931] zil_commit_waiter_timeout+0x1f3/0x570 [zfs] [10077.725273] zil_commit_waiter+0x1d2/0x3b0 [zfs] [10077.726438] zil_commit_impl+0x6d/0xd0 [zfs] [10077.727586] zfs_fsync+0x66/0x90 [zfs] [10077.728675] zpl_fsync+0xe5/0x140 [zfs] [10077.729755] do_fsync+0x38/0x70 [10077.730607] __x64_sys_fsync+0x10/0x20 [10077.731482] do_syscall_64+0x5b/0x1b0 [10077.732415] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [10077.733487] RIP: 0033:0x7eff236bb057 [10077.734399] Code: Unable to access opcode bytes at RIP 0x7eff236bb02d. [10077.735657] RSP: 002b:00007ffffb8e5320 EFLAGS: 00000293 ORIG_RAX: 000000000000004a [10077.737163] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007eff236bb057 [10077.738526] RDX: 0000000000000000 RSI: 000055e4d1f13ac0 RDI: 0000000000000006 [10077.739966] RBP: 00007efeb8ed8000 R08: 0000000000000000 R09: 0000000000000000 [10077.741336] R10: 0000000000056000 R11: 0000000000000293 R12: 0000000000000003 [10077.742773] R13: 000055e4d1f13ac0 R14: 0000000000000000 R15: 000055e4d1f13ae8 [10077.744168] INFO: task fio:1055502 blocked for more than 120 seconds. [10077.745505] Tainted: P OE -------- - - 4.18.0-553.5.1.el8_10.x86_64 #1 [10077.747073] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10077.748642] task:fio state:D stack:0 pid:1055502 ppid:1055490 flags:0x00004080 [10077.750233] Call Trace: [10077.751011] __schedule+0x2d1/0x870 [10077.751915] schedule+0x55/0xf0 [10077.752811] schedule_timeout+0x19f/0x320 [10077.753762] ? __next_timer_interrupt+0xf0/0xf0 [10077.754824] io_schedule_timeout+0x19/0x40 [10077.755782] __cv_timedwait_common+0x19e/0x2c0 [spl] [10077.756922] ? finish_wait+0x80/0x80 [10077.757788] __cv_timedwait_io+0x15/0x20 [spl] [10077.758845] zio_wait+0x1ad/0x4f0 [zfs] [10077.759941] dmu_write_abd+0x174/0x1c0 [zfs] [10077.761144] dmu_write_uio_direct+0x79/0x100 [zfs] [10077.762327] dmu_write_uio_dnode+0xb2/0x320 [zfs] [10077.763523] dmu_write_uio_dbuf+0x47/0x60 [zfs] [10077.764749] zfs_write+0x581/0xe20 [zfs] [10077.765825] ? iov_iter_get_pages+0xe9/0x390 [10077.766842] ? trylock_page+0xd/0x20 [zfs] [10077.767956] ? __raw_spin_unlock+0x5/0x10 [zfs] [10077.769189] ? zfs_setup_direct+0x7e/0x1b0 [zfs] [10077.770343] zpl_iter_write_direct+0xd4/0x170 [zfs] [10077.771570] ? rrw_exit+0xc6/0x200 [zfs] [10077.772674] zpl_iter_write+0xd5/0x110 [zfs] [10077.773834] new_sync_write+0x112/0x160 [10077.774805] vfs_write+0xa5/0x1b0 [10077.775634] ksys_write+0x4f/0xb0 [10077.776526] do_syscall_64+0x5b/0x1b0 [10077.777386] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [10077.778488] RIP: 0033:0x7eff236baa47 [10077.779339] Code: Unable to access opcode bytes at RIP 0x7eff236baa1d. [10077.780655] RSP: 002b:00007ffffb8e5330 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [10077.782056] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007eff236baa47 [10077.783507] RDX: 00000000000e4000 RSI: 00007efeb7dd4000 RDI: 0000000000000005 [10077.784890] RBP: 00007efeb7dd4000 R08: 0000000000000000 R09: 0000000000000000 [10077.786303] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000e4000 [10077.787637] R13: 000055e4d1f13ac0 R14: 00000000000e4000 R15: 000055e4d1f13ae8 Signed-off-by: Brian Atkinson <batkinson@lanl.gov> |
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| .github | ||
| cmd | ||
| config | ||
| contrib | ||
| etc | ||
| include | ||
| lib | ||
| man | ||
| module | ||
| rpm | ||
| scripts | ||
| tests | ||
| udev | ||
| .cirrus.yml | ||
| .editorconfig | ||
| .gitignore | ||
| .gitmodules | ||
| .mailmap | ||
| AUTHORS | ||
| CODE_OF_CONDUCT.md | ||
| COPYRIGHT | ||
| LICENSE | ||
| META | ||
| Makefile.am | ||
| NEWS | ||
| NOTICE | ||
| README.md | ||
| RELEASES.md | ||
| TEST | ||
| autogen.sh | ||
| configure.ac | ||
| copy-builtin | ||
| zfs.release.in | ||
README.md
OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 13.0-RELEASE.