Public bug reported:
While playing around with the CDROM API found in linux/cdrom.h I
encountered a kernel oops when my program stalls. My code can be found
at https://github.com/bigdavedev/audiorip.
My program simply examines the ToC and then begins reading the PCM data
track-by-track. I would expect it to complete without any major issue
At first I assumed it was the CD, but after switching CDs several times
I noticed that the oops happens at around frame 170925, reading
CD_FRAMES (75) per ioctl. At this point, the disc is spinning at full
speed. I have not yet tried reading fewer frames, nor have I tried
setting the speed to something not max to see if I still receive a
kernel oops. This would not be problematic to try.
I have attached the output from `ubuntu-bug linux` to this issue.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "apport.linux-image-4.4.0-22-generic.zuaa6zc0.apport"
https://bugs.launchpad.net/bugs/1580776/+attachment/4660923/+files/apport.linux-image-4.4.0-22-generic.zuaa6zc0.apport
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https://bugs.launchpad.net/bugs/1580776
Title:
Kernel Oops - unable to handle kernel NULL pointer dereference at
0000000000000002; IP is at mmc_ioctl_cdrom_read_audio+0x212/0x3b0
Status in linux package in Ubuntu:
New
Bug description:
While playing around with the CDROM API found in linux/cdrom.h I
encountered a kernel oops when my program stalls. My code can be
found at https://github.com/bigdavedev/audiorip.
My program simply examines the ToC and then begins reading the PCM
data track-by-track. I would expect it to complete without any major
issue
At first I assumed it was the CD, but after switching CDs several
times I noticed that the oops happens at around frame 170925, reading
CD_FRAMES (75) per ioctl. At this point, the disc is spinning at full
speed. I have not yet tried reading fewer frames, nor have I tried
setting the speed to something not max to see if I still receive a
kernel oops. This would not be problematic to try.
I have attached the output from `ubuntu-bug linux` to this issue.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1580776/+subscriptions
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