On Mon, Dec 21, 2015 at 03:55:08PM -0500, Glomski, Patrick wrote: > Hello, > > We've recently upgraded from gluster 3.6.6 to 3.7.6 and have started > encountering dmesg page allocation errors (stack trace is appended). > > It appears that glusterfsd now sometimes fills up the cache completely and > crashes with a page allocation failure. I *believe* it mainly happens when > copying lots of new data to the system, running a 'find', or similar. Hosts > are all Scientific Linux 6.6 and these errors occur consistently on two > separate gluster pools. > > Has anyone else seen this issue and are there any known fixes for it via > sysctl kernel parameters or other means? > > Please let me know of any other diagnostic information that would help. Could you explain a little more about this? The below is a message from the kernel telling you that the mlx4_ib (Mellanox Infiniband?) driver is requesting more continuous memory than is immediately available. So, the questions I have regarding this: 1. how is infiniband involved/configured in this environment? 2. was there a change/update of the driver (kernel update maybe?) 3. do you get a coredump of the glusterfsd process when this happens? 4. is this a fuse mount process, or a brick process? (check by PID?) Thanks, Niels > > Thanks, > Patrick > > > [1458118.134697] glusterfsd: page allocation failure. order:5, mode:0x20 > > [1458118.134701] Pid: 6010, comm: glusterfsd Not tainted > > 2.6.32-573.3.1.el6.x86_64 #1 > > [1458118.134702] Call Trace: > > [1458118.134714] [<ffffffff8113770c>] ? __alloc_pages_nodemask+0x7dc/0x950 > > [1458118.134728] [<ffffffffa0321800>] ? mlx4_ib_post_send+0x680/0x1f90 > > [mlx4_ib] > > [1458118.134733] [<ffffffff81176e92>] ? kmem_getpages+0x62/0x170 > > [1458118.134735] [<ffffffff81177aaa>] ? fallback_alloc+0x1ba/0x270 > > [1458118.134736] [<ffffffff811774ff>] ? cache_grow+0x2cf/0x320 > > [1458118.134738] [<ffffffff81177829>] ? ____cache_alloc_node+0x99/0x160 > > [1458118.134743] [<ffffffff8145f732>] ? pskb_expand_head+0x62/0x280 > > [1458118.134744] [<ffffffff81178479>] ? __kmalloc+0x199/0x230 > > [1458118.134746] [<ffffffff8145f732>] ? pskb_expand_head+0x62/0x280 > > [1458118.134748] [<ffffffff8146001a>] ? __pskb_pull_tail+0x2aa/0x360 > > [1458118.134751] [<ffffffff8146f389>] ? harmonize_features+0x29/0x70 > > [1458118.134753] [<ffffffff8146f9f4>] ? dev_hard_start_xmit+0x1c4/0x490 > > [1458118.134758] [<ffffffff8148cf8a>] ? sch_direct_xmit+0x15a/0x1c0 > > [1458118.134759] [<ffffffff8146ff68>] ? dev_queue_xmit+0x228/0x320 > > [1458118.134762] [<ffffffff8147665d>] ? neigh_connected_output+0xbd/0x100 > > [1458118.134766] [<ffffffff814abc67>] ? ip_finish_output+0x287/0x360 > > [1458118.134767] [<ffffffff814abdf8>] ? ip_output+0xb8/0xc0 > > [1458118.134769] [<ffffffff814ab04f>] ? __ip_local_out+0x9f/0xb0 > > [1458118.134770] [<ffffffff814ab085>] ? ip_local_out+0x25/0x30 > > [1458118.134772] [<ffffffff814ab580>] ? ip_queue_xmit+0x190/0x420 > > [1458118.134773] [<ffffffff81137059>] ? __alloc_pages_nodemask+0x129/0x950 > > [1458118.134776] [<ffffffff814c0c54>] ? tcp_transmit_skb+0x4b4/0x8b0 > > [1458118.134778] [<ffffffff814c319a>] ? tcp_write_xmit+0x1da/0xa90 > > [1458118.134779] [<ffffffff81178cbd>] ? __kmalloc_node+0x4d/0x60 > > [1458118.134780] [<ffffffff814c3a80>] ? tcp_push_one+0x30/0x40 > > [1458118.134782] [<ffffffff814b410c>] ? tcp_sendmsg+0x9cc/0xa20 > > [1458118.134786] [<ffffffff8145836b>] ? sock_aio_write+0x19b/0x1c0 > > [1458118.134788] [<ffffffff814581d0>] ? sock_aio_write+0x0/0x1c0 > > [1458118.134791] [<ffffffff8119169b>] ? do_sync_readv_writev+0xfb/0x140 > > [1458118.134797] [<ffffffff810a14b0>] ? autoremove_wake_function+0x0/0x40 > > [1458118.134801] [<ffffffff8123e92f>] ? selinux_file_permission+0xbf/0x150 > > [1458118.134804] [<ffffffff812316d6>] ? security_file_permission+0x16/0x20 > > [1458118.134806] [<ffffffff81192746>] ? do_readv_writev+0xd6/0x1f0 > > [1458118.134807] [<ffffffff811928a6>] ? vfs_writev+0x46/0x60 > > [1458118.134809] [<ffffffff811929d1>] ? sys_writev+0x51/0xd0 > > [1458118.134812] [<ffffffff810e88ae>] ? __audit_syscall_exit+0x25e/0x290 > > [1458118.134816] [<ffffffff8100b0d2>] ? system_call_fastpath+0x16/0x1b > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxxx > http://www.gluster.org/mailman/listinfo/gluster-devel
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