https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199309
Bug ID: 199309
Summary: Kernel panic "binsfree: free buffer onto another
queue???" extracting tar to ext2fs partition.
Product: Base System
Version: 10.1-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: kpiel...@tdx.co.uk
When extracting a large .tar.gz file onto a mounted ext2fs filesystem - under
10.1-RELEASE you get a reproducible kernel panic (details below).
The same set of operations on a FreeBSD 9.1-RELEASE system work correctly.
To reproduce:
- Install FreeBSD
- Install 'e2fsutils'
'mke2fs' a new partition, and mount it (e.g. 'mount -t ext2fs /dev/ada1s4
/mnt') - extract a large tar file (20Gb) to this new partition.
Under 9.1-R it finishes extraction. Under 10.1-R it fails after about the same
amount of time, but in slightly different places with:
"
panic: binsfree: free buffer onto another queue???
cpuid =3
KDB: stack backtrace:
#0 0xffffffff80963000 at kb_backtrace+0x60
#1 0xffffffff80928125 at panic+0x155
#2 0xffffffff809b18f7 at binsfree+0x327
#3 0xffffffff809afca0 at brelse+0x5f0
#4 0xffffffff81a19c34 at ext2_htree_add_entry+0x714
#5 0xffffffff81a1c1d4 at ext2_direnter+0xc4
#6 0xffffffff81a21d7d at ext2_makeinode+0x12d
#7 0xffffffff80e41ca1 at VOP_CREATE_APV+0xa1
#8 0xffffffff809d66c8 at vn_open_cred+0x2a8
#9 0xffffffff809cfedf at kern_openat+0x26f
#10 0xffffffff80d25851 at amd64_syscall+0x351
"
I have a minidump (~470Mb) of this crash - so I can kgdb it to run off various
bits (I can't publish as it likely has confidential data in the dump).
Smaller tar files extract OK.
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