OpenSolaris

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Bug ID 6431036
Synopsis dtrace_helpers_duplicate() confuses dtrace_helpers_destroy()
State 10-Fix Delivered (Fix available in build)
Category:Subcategory kernel:dtrace
Keywords
Responsible Engineer Jonathan Adams
Reported Against snv_41
Duplicate Of
Introduced In solaris_nevada
Commit to Fix snv_41
Fixed In snv_41
Release Fixed solaris_nevada(snv_41) , solaris_10u4(s10u4_03) (Bug ID:2144494)
Related Bugs 6426934 , 6430221 , 6432348
Submit Date 26-May-2006
Last Update Date 16-February-2007
Description
Many systems within PIT for the snv_41 test run are failing with kmem corruption problems.

A type panic is:

kernel memory allocator:
buffer modified after being freed
modification occurred at offset 0xa0 (0xdeadbeefdeadbeef replaced by 0x30005bcc200)buffer=30002c86400  bufctl=30002d29308  cache: kmem_alloc_192
previous transaction on buffer 30002c86400:
thread=30005754000  time=T-16.126277048  slab=30002aa1b10  cache: kmem_alloc_192
kmem_cache_free+30
ctfs_stat_ioctl+1f8
fop_ioctl+20
ioctl+184

panic[cpu1]/thread=30006e1a5e0:
kernel heap corruption detected


And another one

kernel memory allocator:
buffer modified after being freed
modification occurred at offset 0xa0 (0xdeadbeefdeadbeef replaced by 0x6000004ca00)
buffer=30004ed8b00  bufctl=30004f30f10  cache: kmem_alloc_192
previous transaction on buffer 30004ed8b00:
thread=3000c1faf00  time=T-43.886006958  slab=30000087818  cache: kmem_alloc_192kmem_cache_free+30
elf32exec+814
gexec+39c
exec_common+31c
exece+c

panic[cpu0]/thread=2a101185cc0:
kernel heap corruption detected
Work Around
N/A
Comments
N/A