Re: Major KVM issues with kernel 4.5 on the host

[Marc Haber]

On Wed, Apr 13, 2016 at 10:36:34PM +0200, Paolo Bonzini wrote:
> Didn't help, but a fresh look at the list of 4.5 patches helped.
> What the hell was I thinking, I missed write_rdtscp_aux who
> obviously uses MSR_TSC_AUX.

I applied this patch to 4.5, which didn't go cleanly, I had to do it
manually, and there is no change in behavior. Sometimes, the Vm just
crashes, but most times the filesystem is remounted ro.

[   84.658968] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #7669: comm aide: deleted inode referenced: 27903
[   84.664877] Aborting journal on device dm-0-8.
[   84.667992] EXT4-fs (dm-0): Remounting filesystem read-only
[   84.670972] EXT4-fs error (device dm-0): ext4_journal_check_start:56: Detected aborted journal
[   84.763331] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #7669: comm aide: deleted inode referenced: 27898
[   84.825412] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #7669: comm aide: deleted inode referenced: 27895
[   84.907959] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #7669: comm aide: deleted inode referenced: 27893
[   84.915187] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #7669: comm aide: deleted inode referenced: 27900
[   84.961062] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #7669: comm aide: deleted inode referenced: 27889
[   84.983700] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #7669: comm aide: deleted inode referenced: 27891
[   98.315538] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #23567: comm aide: deleted inode referenced: 27897
[   98.323606] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #23567: comm aide: deleted inode referenced: 27904
[   99.889927] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #4650: comm aide: deleted inode referenced: 27892
[   99.893823] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #4650: comm aide: deleted inode referenced: 27901
[   99.901140] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #4650: comm aide: deleted inode referenced: 27890
[   99.904898] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #4650: comm aide: deleted inode referenced: 27896
[   99.909758] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #4650: comm aide: deleted inode referenced: 27899
[   99.914394] EXT4-fs error (device dm-0): ext4_lookup:1602: inode #4650: comm aide: deleted inode referenced: 27894
[  207.132045] serial8250: too much work for irq4
[  207.220043] serial8250: too much work for irq4
[  207.312028] serial8250: too much work for irq4


Greetings
Marc

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