Kernel Panic Issues after installing 2.0.0 RC5 on Big Sur

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Re: Kernel Panic Issues after installing 2.0.0 RC5 on Big Su

Postby lundman » Sun Nov 29, 2020 2:04 am

Well, I'm not celebrating yet, but I'll have another rum&coke anyway :) At least it is encouraging
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Re: Kernel Panic Issues after installing 2.0.0 RC5 on Big Su

Postby Jimbo » Sun Nov 29, 2020 2:10 am

Re "big rm" yeah, I'll thrash it some more.

Re DMESG, yup:
Code: Select all
[  371.249290]: ZFS: Loading module ...
[  371.249294]: SPL: loading
[  372.240395]: Kernel slide: f600000
[  372.240401]: Kernel base: ffffff80f810000
[  372.240405]: spl_loadsymbols: keepsyms=1 missing, probably unable to locate symbols
[  372.240409]: spl_loadsymbols: failed to locate '_vm_page_speculative_count'
[  372.240412]: spl_loadsymbols: failed to locate '_vnode_iocount'
[  372.240415]: spl_loadsymbols: failed to locate '_cache_purgevfs'
[  372.240418]: spl_loadsymbols: failed to locate '_vm_page_free_wanted'
[  372.240420]: spl_loadsymbols: failed to locate '_vm_page_free_count'
[  372.240423]: spl_loadsymbols: failed to locate '_vm_page_free_min'
[  372.240425]: spl_loadsymbols: failed to locate '_rootvnode'
[  372.240428]: spl_loadsymbols: failed to locate '_system_inshutdown'
[  372.240430]: spl_loadsymbols: failed to locate '_VFS_ROOT'
[  372.240432]: spl_loadsymbols: failed to locate '_build_path'
[  372.240435]: spl_loadsymbols: failed to locate '_kvtophys'
[  372.240437]: spl_loadsymbols: failed to locate '_kernel_memory_allocate'
[  372.240440]: spl_loadsymbols: failed to locate '_hostname'
[  372.240442]: spl_loadsymbols: failed to locate '_VNOP_LOOKUP'
[  372.240444]: spl_loadsymbols: failed to locate '_cpuid_info'
[  372.240447]: spl_loadsymbols: failed to locate '_vfs_context_kernel'
[  372.240449]: spl_loadsymbols: failed to locate '_fp_getfvp'
[  372.240452]: spl_loadsymbols: Loaded 0, failed 17.


Off to re-enable keepsyms and smash lots of deletes...

Cheers!
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Re: Kernel Panic Issues after installing 2.0.0 RC5 on Big Su

Postby Jimbo » Sun Nov 29, 2020 4:58 am

Right-o, for Rev #10...

The "big rm" panic seems resolved. I've just completed a delete of 1.88+ million filesystem object (directories, files, links, etc) and no issues.

On boot panic seems prevented, but still squiffy due to requiring "keepsyms=1" (for at least some Big Sur installs?).

Import of pool with multiple datasets/ZVOLs is still racy and can result in semi-b0rked imports.

Happy days!
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Re: Kernel Panic Issues after installing 2.0.0 RC5 on Big Su

Postby dguisinger01 » Sun Nov 29, 2020 1:07 pm

Is this keepsyms issue temporary?


I have a question on performance, is anyone seeing any issues? I have an issue, and I don't think its ZFS but I haven't actually seen it before this upgrade happened.

I installed a bunch of instrument libraries on my volume, and when I load them up in logic.... it slowly, over several minutes, fills in audio samples for the different keys on the keyboard. I don't hear disk access, i've got 32GB of ram, etc. It just seems like things are hanging on something.

I've got an open ticket with the library provider Spitfire Audio, but I've never seen this issue before the switch to Big Sur and ZFS 2.0 RC builds.
So I am curious if there are any known performance issues.

A blackmagic disk speed test is still hitting several hundred MB/sec... so between not hearing disk access and those results, I'm leaning towards this being a coincidence.
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Re: Kernel Panic Issues after installing 2.0.0 RC5 on Big Su

Postby lundman » Sun Nov 29, 2020 7:27 pm

There is a new Catalina build which hopefully could address the zvol registration issue.
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