Description of problem: Several times in the past few months I've had a DomU stop responding to my XDMCP session. When I ssh in to the Dom0 and connect to the console, it spews an endless loop of console messages. Attempts to ssh into the DomU timeout. In this particular case, the messages were for a 'claws-mail' process. I don't recall what the process was in the previous instances. Version-Release number of selected component (if applicable): DomU (2.6.18-1.2257.fc5xenU) Dom0 2.6.18-1.2257.fc5xen0 How reproducible: Not sure Steps to Reproduce: Unsure Actual results: un-responsive DomU Expected results: responsive DomU Additional info: Console was looping with these messages: DWARF2 unwinder stuck at work_notifysig+0x13/0x1a Leftover inexact backtrace: ======================= Bad pte = 006b60a0, process = claws-mail, vm_flags = 100070, vaddr = b7284000 [<c04055c5>] dump_trace+0x69/0x1af [<c0405723>] show_trace_log_lvl+0x18/0x2c [<c0405cc2>] show_trace+0xf/0x11 [<c0405cfa>] dump_stack+0x15/0x17 [<c044aca8>] vm_normal_page+0x98/0xb0 [<c044b297>] follow_page+0xe9/0x187 [<c044cdc6>] get_user_pages+0x28c/0x2f5 [<c048564a>] elf_core_dump+0x9ab/0xb95 [<c0466da4>] do_coredump+0x4fe/0x555 [<c04236db>] get_signal_to_deliver+0x403/0x432 [<c04043d4>] do_notify_resume+0x76/0x61b [<c0404e01>] work_notifysig+0x13/0x1a DWARF2 unwinder stuck at work_notifysig+0x13/0x1a Leftover inexact backtrace: ======================= Bad pte = 006b60a0, process = claws-mail, vm_flags = 100070, vaddr = b7284000 [<c04055c5>] dump_trace+0x69/0x1af [<c0405723>] show_trace_log_lvl+0x18/0x2c [<c0405cc2>] show_trace+0xf/0x11 [<c0405cfa>] dump_stack+0x15/0x17 [<c044aca8>] vm_normal_page+0x98/0xb0 [<c044b297>] follow_page+0xe9/0x187 [<c044cdc6>] get_user_pages+0x28c/0x2f5 [<c048564a>] elf_core_dump+0x9ab/0xb95 [<c0466da4>] do_coredump+0x4fe/0x555 [<c04236db>] get_signal_to_deliver+0x403/0x432 [<c04043d4>] do_notify_resume+0x76/0x61b [<c0404e01>] work_notifysig+0x13/0x1a
Happened again today.. seems to be when a process core-dumps.. Leftover inexact backtrace: ======================= Bad pte = 006b60a0, process = vlc, vm_flags = 100070, vaddr = 2a8b000 [<c04055c5>] dump_trace+0x69/0x1af [<c0405723>] show_trace_log_lvl+0x18/0x2c [<c0405cc2>] show_trace+0xf/0x11 [<c0405cfa>] dump_stack+0x15/0x17 [<c044aca8>] vm_normal_page+0x98/0xb0 [<c044b297>] follow_page+0xe9/0x187 [<c044cdc6>] get_user_pages+0x28c/0x2f5 [<c048564a>] elf_core_dump+0x9ab/0xb95 [<c0466da4>] do_coredump+0x4fe/0x555 [<c04236db>] get_signal_to_deliver+0x403/0x432 [<c04043d4>] do_notify_resume+0x76/0x61b [<c0404e01>] work_notifysig+0x13/0x1a DWARF2 unwinder stuck at work_notifysig+0x13/0x1a
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This report targets FC5, which is now end-of-life. Please re-test against Fedora 7 or later, and if the issue persists, open a new bug. Thanks