Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Not sure if this is caused by DRBD but I've had a CMAN/DRBD/GFS2 cluster stop doing I/O to the DRBD volume overnight with the following stack trace in syslog: OS is CentOS 5.7 i386: kernel-PAE-2.6.18-274.7.1.el5 drbd83-8.3.8-1.el5.centos kmod-drbd83-PAE-8.3.8-1.el5.centos gfs2-utils-0.1.62-31.el5 Jan 18 09:04:17 web01 kernel:INFO: task pdflush:294 blocked for more than 120 seconds. Jan 18 09:04:17 web01 kernel:"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jan 18 09:04:17 web01 kernel:pdflush D 0019A7B6 2392 294 27 295 293 (L-TLB) Jan 18 09:04:17 web01 kernel:f7f68e3c 00000046 506f08e2 0019a7b6 f6f72988 f6f72980 00001070 0000000a Jan 18 09:04:17 web01 kernel:f7f67aa0 506f9108 0019a7b6 00008826 00000001 f7f67bac c3619544 f7361c80 Jan 18 09:04:17 web01 kernel:f8d863cf 00000000 f8d868c3 00000005 f6d0f8f0 00000000 f669c42c ffffffff Jan 18 09:04:17 web01 kernel:Call Trace: Jan 18 09:04:17 web01 kernel:[<f8d863cf>] gdlm_ast+0x0/0x31b [lock_dlm] Jan 18 09:04:17 web01 kernel:[<f8d868c3>] gdlm_bast+0x0/0xbf [lock_dlm] Jan 18 09:04:17 web01 kernel:[<f8e0531f>] just_schedule+0x5/0x8 [gfs2] Jan 18 09:04:17 web01 kernel:[<c062145f>] __wait_on_bit+0x33/0x58 Jan 18 09:04:17 web01 kernel:[<f8e0531a>] just_schedule+0x0/0x8 [gfs2] Jan 18 09:04:17 web01 kernel:[<f8e0531a>] just_schedule+0x0/0x8 [gfs2] Jan 18 09:04:17 web01 kernel:[<c06214e6>] out_of_line_wait_on_bit+0x62/0x6a Jan 18 09:04:17 web01 kernel:[<c043734c>] wake_bit_function+0x0/0x3c Jan 18 09:04:17 web01 kernel:[<f8e052e2>] gfs2_glock_wait+0x2e/0x66 [gfs2] Jan 18 09:04:17 web01 kernel:[<f8e1562e>] gfs2_write_inode+0x5c/0x15a [gfs2] Jan 18 09:04:17 web01 kernel:[<f8e15627>] gfs2_write_inode+0x55/0x15a [gfs2] Jan 18 09:04:17 web01 kernel:[<c049576e>] __writeback_single_inode+0x199/0x2a5 Jan 18 09:04:17 web01 kernel:[<f8dd8b08>] drbd_congested+0x1a3/0x235 [drbd] Jan 18 09:04:17 web01 kernel:[<c0495b5e>] sync_sb_inodes+0x17e/0x221 Jan 18 09:04:17 web01 kernel:[<c0495dad>] writeback_inodes+0x6a/0xb0 Jan 18 09:04:17 web01 kernel:[<c045d7d6>] wb_kupdate+0xcb/0x130 Jan 18 09:04:17 web01 kernel:[<c045dbf7>] pdflush+0x0/0x1a1 Jan 18 09:04:17 web01 kernel:[<c045dd02>] pdflush+0x10b/0x1a1 Jan 18 09:04:17 web01 kernel:[<c045d70b>] wb_kupdate+0x0/0x130 Jan 18 09:04:17 web01 kernel:[<c043725a>] kthread+0xc0/0xee Jan 18 09:04:17 web01 kernel:[<c043719a>] kthread+0x0/0xee Jan 18 09:04:17 web01 kernel:[<c0405c87>] kernel_thread_helper+0x7/0x10 Jan 18 09:04:17 web01 kernel:======================= Any hints? - -- Mark Watts BSc RHCE Senior Systems Engineer, MSS Secure Managed Hosting www.QinetiQ.com QinetiQ - Delivering customer-focused solutions GPG Key: http://www.linux-corner.info/mwatts.gpg -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) Comment: Using GnuPG with CentOS - http://enigmail.mozdev.org/ iEYEARECAAYFAk8WqAsACgkQBn4EFUVUIO3pwACgrBZH5Aj8WgP1S7ipOaFz2xSK tsIAoOK/ENCao2+GdXtsv0wsbkISHrUu =mbSb -----END PGP SIGNATURE-----