Re: kern/57307: panic: ffs_blkfree: bad size

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

On Wed, Mar 29, 2023 at 08:50:02AM +0000, Michael van Elst wrote:
>  There are several calls to ffs_blkfree in ffs_truncate. Can you
>  identify which one is at ffs_truncate+0xf8e ?

I must have upgraded the kernel since that time, the addresse does
not fit. 0xf8e = 3982, I guess this must be the second call:
   0xc0398229 <ffs_truncate+3495>:      call   0xc03939a5 <ffs_blkfree>
   0xc039840b <ffs_truncate+3977>:      call   0xc03939a5 <ffs_blkfree>
   0xc03986b7 <ffs_truncate+4661>:      call   0xc03939a5 <ffs_blkfree>

Which is your guess.
 
>  My guess is line 527 that should free 'all whole direct blocks or frags'.

I tried a smaller backing store. At 64 Go it does not crash. I will test
next night to find the limit.

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost