There is a source code patch in the message - it should be applied to
the original sources, and re-compiled.
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Title:
udevd takes 100% of cpu
To
Where is the patch, and how to apply it? I couldn't find it in the link.
Please direct me.
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Title:
udevd takes 100% of cpu
To manage
I have found a way to reduce CPU load without entirely stopping the udev
queue.
Create /etc/udev/rules.d/my.rules file, and put the following line into it:
KERNEL==sr1, ACTION==change, WAIT_FOR=nothing
This will introduce a 10 seconds delay when processing 'change' events
from /dev/sr1. As a
Here's the answer from Kay Sievers (udev mailing list):
It's a broken device, that tells with every check that the media has
changed. This patch needs to be tested:
http://marc.info/?l=linux-hotplugm=130843331916959w=2
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thank-you for this solution.
I've been plugging my memory stick into my NAS and using NFS to mount
it, which is clearly stupid.
Your solution is much better.
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I have the same problem with USB stick with integrated CD (Transcend). I
often keep it inserted all the time, so I have to disable udev with
'udevadm control --stop-exec-queue'. This is not a solution, of course,
but so far I could not figure out how to block media change events from
sr1.
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You
A trigger of this is inserting my Sandisk Cruzer USB memory stick with
fake integrated CD-ROM.
This it dmesg when I insert the USB memory stick:
May 12 14:46:20 sojo kernel: [95455.488104] usb 1-3: new high speed USB device
using ehci_hcd and address 12
May 12 14:46:20 sojo kernel:
A while after I removed my usb stick, udisks-daemon and dbus-daemon
quietened down. Maybe they were handling the backlog of inode changed
messages?
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Here is what strace shows:
recv(8, 0xbfced218, 8, MSG_DONTWAIT)= -1 EAGAIN (Resource temporarily
unavailable)
sendmsg(5, {msg_name(12)={sa_family=AF_NETLINK, pid=-4298, groups=},
msg_iov(2)=[{libudev\0\376\355\312\376(\0\0\0(\0\0\0\322\0\0\0\360\3\35\267{\313\305\356...,
40},
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Title:
udevd takes 100% of cpu
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