Russ Allbery <[email protected]> writes: > 6. We're seeing increasing numbers of kernel errors from other servers, > particularly our filedrawers servers, reporting blocked processes > (saying that the process was unable to make forward progress for more > than X seconds) that are attempting to access AFS.
Here's a typical example of one of those errors: [62890.386742] INFO: task cron:18494 blocked for more than 120 seconds. [62890.386743] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [62890.386745] cron D f78eb01a 0 18494 2672 [62890.386747] 00000000 00000086 c017cb5d f78eb01a f78eb011 f6b0ee60 f6b0efec c303ffc0 [62890.386750] 00000004 00000000 00000000 00000000 00000000 000000ff f8c85040 f8c85048 [62890.386753] f8c85044 f6b0ee60 c02b9349 f651fe5c f641de70 f6b0ee60 00000014 00000000 [62890.386756] Call Trace: [62890.386757] [<c017cb5d>] __link_path_walk+0xb0b/0xb26 [62890.386762] [<c02b9349>] __mutex_lock_slowpath+0x50/0x7b [62890.386766] [<c02b91df>] mutex_lock+0xa/0xb [62890.386769] [<f8c67aa6>] afs_syscall+0x198/0x156f [openafs] [62890.386789] [<c017ce5e>] do_path_lookup+0x122/0x184 [62890.386791] [<c01a17db>] pde_users_dec+0xb/0x28 [62890.386794] [<c01a1c7e>] proc_reg_open+0x43/0x4a [62890.386797] [<c01a1c3b>] proc_reg_open+0x0/0x4a [62890.386799] [<c017332e>] __dentry_open+0x130/0x1fc [62890.386802] [<c0173416>] nameidata_to_filp+0x1c/0x2c [62890.386805] [<c017dc12>] do_filp_open+0x34f/0x684 [62890.386808] [<c016412d>] handle_mm_fault+0x30c/0x6dd [62890.386811] [<f8c5fc56>] afs_unlocked_ioctl+0x42/0x4e [openafs] [62890.386833] [<f8c5fc14>] afs_unlocked_ioctl+0x0/0x4e [openafs] [62890.386852] [<c01a1b9f>] proc_reg_unlocked_ioctl+0x51/0x97 [62890.386856] [<c01a1b4e>] proc_reg_unlocked_ioctl+0x0/0x97 [62890.386859] [<c017ea54>] vfs_ioctl+0x1c/0x5d [62890.386862] [<c017ecdf>] do_vfs_ioctl+0x24a/0x261 [62890.386864] [<c0173190>] do_sys_open+0xa8/0xb0 [62890.386867] [<c017ed37>] sys_ioctl+0x41/0x5a [62890.386870] [<c0103857>] sysenter_past_esp+0x78/0xb1 [62890.386874] [<c02b0000>] quirk_amd_ide_mode+0x5e/0xb6 -- Russ Allbery ([email protected]) <http://www.eyrie.org/~eagle/> _______________________________________________ OpenAFS-devel mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-devel
