Mail uses more than 120'%  CPU when fetching headers

Hello,
mail uses more than 100% CPU and the system response gets slow, affecting the other processes when mail starts, and the mail activity viewer says: fetching headers.
It happens when I check my mail with mail client directly in the same server, or when I connect from another machine, my mail Version 2.1 (752/752.2), I have 3 IMAP accounts.
I have verified and repaired the disk (no errors), I have set up mail from scratch, the first network connection is ethernet,
I am using mail program on the server trying to check the mail in the same server. when I open the program, and it starts to fetch headers, the 100 % percent or more of CPU is used (128%,etc).
when I try to conect from another mail program to this server the 100% cpu or more is get when fetching headers (I am using a firewire connection, and the another machine is a MAC PRO (4 processors, 2 x 2.66 GhZ Dual Core Intel Xeon, 1GB ram 667 mhz DDR2 fB/Dimm, MAC OSX 10.4.9, with no other programs running), so the problem is on the server.
I have booted the machine in safe mode (the red text "safe mode" appeared), and the same things happened, I have some screen shots available
from the mail forum they told me that I should check this problem in the server forum.
http://discussions.apple.com/thread.jspa?threadID=957222&tstart=0
any idea?
thanks
Alberto
Dual 2 GHz PowerPC G5   Mac OS X (10.4.9)   4GB DDR SDRAM, MAC OS X Server

Hello OgelThorpe,
Thank you for the suggestion. I will try that soon. My macbook meets well over the hardware requirements for that package. Also only the cpu usage is high, i have 4GB ram and only 500-700 MB of that gets used by adobe premiere.
I have have run the hardware test in a loop and it passed everytime, so i dont doubt the hardware.
regards
Ankit

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    [ 240.509155] [<ffffffffa0681488>] radeon_atom_encoder_mode_set+0x178/0x3c0 [radeon]
    [ 240.510085] [<ffffffffa0563986>] drm_crtc_helper_set_mode+0x356/0x530 [drm_kms_helper]
    [ 240.511021] [<ffffffffa061b97c>] radeon_property_change_mode.isra.1+0x3c/0x40 [radeon]
    [ 240.511944] [<ffffffffa061bb2e>] radeon_connector_set_property+0x1ae/0x3f0 [radeon]
    [ 240.512875] [<ffffffffa05284e2>] drm_mode_obj_set_property_ioctl+0x1b2/0x3a0 [drm]
    [ 240.513791] [<ffffffffa052870f>] drm_mode_connector_property_set_ioctl+0x3f/0x60 [drm]
    [ 240.514728] [<ffffffffa0518fef>] drm_ioctl+0x1df/0x680 [drm]
    [ 240.515632] [<ffffffff8105e9ac>] ? __do_page_fault+0x2ec/0x600
    [ 240.516555] [<ffffffffa05f404c>] radeon_drm_ioctl+0x4c/0x80 [radeon]
    [ 240.517455] [<ffffffff811da5f0>] do_vfs_ioctl+0x2d0/0x4b0
    [ 240.518369] [<ffffffff811ca161>] ? __sb_end_write+0x31/0x60
    [ 240.519267] [<ffffffff811da851>] SyS_ioctl+0x81/0xa0
    [ 240.520176] [<ffffffff8153db29>] system_call_fastpath+0x16/0x1b
    [ 360.455851] INFO: task Xorg.bin:1534 blocked for more than 120 seconds.
    [ 360.456839] Tainted: P O 3.17.4-1-ARCH #1
    [ 360.457713] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
    [ 360.458629] Xorg.bin D 0000000000000007 0 1534 1533 0x00000000
    [ 360.459548] ffff8807fcd333b0 0000000000000082 ffff880808b264a0 00000000000145c0
    [ 360.460442] ffff8807fcd33fd8 00000000000145c0 ffff880812e73250 ffff880808b264a0
    [ 360.461294] 0000000000000080 0000000000000140 0000000000001e00 000000000000000a
    [ 360.462160] Call Trace:
    [ 360.463040] [<ffffffff813113db>] ? bit_putcs+0x30b/0x590
    [ 360.463880] [<ffffffff81539519>] schedule+0x29/0x70
    I do not see any errors in my Xorg.0.log file, but I've posted it here
    Last edited by smpolymen (2014-12-06 04:04:55)

    Ok, so I tried unplugging my HDMI monitor and that seems to prevent the hang. When I plug the monitor back in and try to have it detect, it hangs again. I tried connecting via DVI (desktop)-HDMI (monitor) cable instead and have the same issue. I wonder if my monitor is causing the issue (it is pretty flaky, taking several tries to turn it on,) although I find it odd that a bad monitor would cause the driver to hang. Maybe the monitor is not sending the right data to the driver to set the mode. I'll try to find another monitor and see if that resolves the issue.

  • Hang on copy: "btrfs-transacti:282 blocked for more than 120 seconds."

    Lately (at least after upgrading to linux 3.15), when I try to copy lots of files between btrfs partitions, I'm getting these "IO hangs" (not sure what to call it) where I can use the system fine as long as I don't try to read/write from my btrfs /home. So I can log in as root and look around, but as soon as I try and ls some random dir within my btrfs /home, it blocks and I have to log in from a different tty to use the system.
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    juli 17 14:25:54 arch kernel: [<ffffffffa049fadf>] wait_current_trans.isra.18+0xcf/0x120 [btrfs]
    juli 17 14:25:54 arch kernel: [<ffffffffa04a12d8>] start_transaction+0x3a8/0x5c0 [btrfs]
    juli 17 14:25:54 arch kernel: [<ffffffffa04a1547>] btrfs_join_transaction+0x17/0x20 [btrfs]
    juli 17 14:25:54 arch kernel: [<ffffffffa04a6dd3>] btrfs_dirty_inode+0x43/0xf0 [btrfs]
    juli 17 14:25:54 arch kernel: [<ffffffffa04a6eff>] btrfs_update_time+0x7f/0xc0 [btrfs]
    juli 17 14:35:54 arch kernel: INFO: task btrfs-transacti:282 blocked for more than 120 seconds.
    juli 17 14:35:54 arch kernel: btrfs-transacti D 0000000000000000 0 282 2 0x00000000
    juli 17 14:35:54 arch kernel: [<ffffffffa04b0df6>] btrfs_wait_and_free_delalloc_work+0x16/0x30 [btrfs]
    juli 17 14:35:54 arch kernel: [<ffffffffa04bb128>] btrfs_run_ordered_operations+0x1f8/0x2e0 [btrfs]
    juli 17 14:35:54 arch kernel: [<ffffffffa04a0546>] btrfs_commit_transaction+0x36/0xa20 [btrfs]
    juli 17 14:35:54 arch kernel: [<ffffffffa049c475>] transaction_kthread+0x1e5/0x250 [btrfs]
    juli 17 14:35:54 arch kernel: [<ffffffffa049c290>] ? btrfs_cleanup_transaction+0x5a0/0x5a0 [btrfs]
    juli 17 14:35:54 arch kernel: Workqueue: btrfs-flush_delalloc normal_work_helper [btrfs]
    (see full paste at http://pastie.org/9399449)
    There seems to be others with similar issues:
    http://www.spinics.net/lists/linux-btrfs/msg34458.html
    http://www.mail-archive.com/linux-btrfs … 33795.html
    but no solution from what I can tell.
    It may be that it would unhang itself if I waited a really long while, but haven't had the patience to wait and see yet. I do run nightly backups between the btrfs partitions and the computer seems fine each morning though …
    Anyone know what to do about this?
    Last edited by unhammer (2014-07-17 13:49:55)

    Same thing for me when running rsync... It also corrupted my filesystem. So I restored from a backup and I'm using XFS@LVM@dm-crypt for the time being.
    https://imgur.com/a/6gNhH

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