URL:
<http://savannah.gnu.org/bugs/?25054>
Summary: Kernel panic with eth-multiplexer
Project: The GNU Hurd
Submitted by: None
Submitted on: Tue 09 Dec 2008 10:31:05 PM UTC
Category: GNU Mach
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Originator Name: antrik
Originator Email: [EMAIL PROTECTED]
Open/Closed: Open
Discussion Lock: Any
Reproducibility: Intermittent
Size (loc): None
Planned Release: None
Effort: 0.00
Wiki-like text discussion box:
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Details:
Transferring large files (some hundred MB) with NFS or HTTP, when using the
ethernet multiplexer (from zhengda-soc2008-virt-branch in Hurd CVS),
regularily
produces:
Assertion `object->ref_count > 0' failed in file "../vm/vm_object.c", line
346
vm_object_reference
/build/buildd/gnumach-1.3.99.dfsg.cvs20080708/build-dbg/../vm/vm_object.c:346
vm_object_collapse
/build/buildd/gnumach-1.3.99.dfsg.cvs20080708/build-dbg/../vm/vm_object.c:2689
vm_fault_page
/build/buildd/gnumach-1.3.99.dfsg.cvs20080708/build-dbg/../vm/vm_fault.c:882
vm_fault
/build/buildd/gnumach-1.3.99.dfsg.cvs20080708/build-dbg/../vm/vm_fault.c:1279
user_trap
/build/buildd/gnumach-1.3.99.dfsg.cvs20080708/build-dbg/../i386/i386/trap.c:514
This is with gnumach-dbg=2:1.3.99.dfsg.cvs20080708-1
Interestingly, doing the same with a locally built gnumach that contains the
patch enabling promiscuous mode for the network device, produces a zalloc
panic
instead. (A quick check with vmstat and ps showed growing memory use by the
multiplexer process, but haven't investigated further.) I wonder whether the
difference is because it's locally built (different toolchain?), or because
of
the patch.
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