Date: Thu, 10 Jun 2010 17:40:27 GMT From: Michael Moll <kvedulv@kvedulv.de> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/147769: 'ifconfig epair0 create' hangs the whole system Message-ID: <201006101740.o5AHeRaa091239@www.freebsd.org> Resent-Message-ID: <201006101750.o5AHo0N1008248@freefall.freebsd.org>
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>Number: 147769 >Category: kern >Synopsis: 'ifconfig epair0 create' hangs the whole system >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Jun 10 17:50:00 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Michael Moll >Release: 9.0-CURRENT >Organization: >Environment: FreeBSD fujisan.kvedulv.de 9.0-CURRENT FreeBSD 9.0-CURRENT #0: Thu Jun 10 18:09:12 CEST 2010 root@fujisan.kvedulv.de:/usr/obj/usr/src/sys/VIMAGE sparc64 >Description: This might be specific to sparc64 - or a general VImage problem. I use r208975 and the following kernel config: <snip> include GENERIC ident VIMAGE nooptions SCTP options VIMAGE options BREAK_TO_DEBUGGER </snip> When doing a 'ifconfig epair0 create' the whole machine hangs (no I/O, no ping). A backtrace after breaking shows: db> bt Tracing pid 2135 tid 100124 td 0xfffff800045f9270 uart_intr() at uart_intr+0x1ac intr_event_handle() at intr_event_handle+0x5c intr_execute_handlers() at intr_execute_handlers+0x8 intr_fast() at intr_fast+0x68 -- interrupt level=0xc pil=0 %o7=0xc0088ff8 -- -- fast data access mmu miss tar=0x127d2a000 %o7=0xc03d7d40 -- mtx_init() at mtx_init+0x134 epair_modevent() at epair_modevent+0xe4 module_register_init() at module_register_init+0xdc linker_load_module() at linker_load_module+0xbd8 kern_kldload() at kern_kldload+0xd0 kldload() at kldload+0x60 syscallenter() at syscallenter+0x268 syscall() at syscall+0x74 -- syscall (304, FreeBSD ELF64, kldload) %o7=0x102fe0 -- userland() at 0x408c2028 user trace: trap %o7=0x102fe0 pc 0x408c2028, sp 0x7fdffffd8e1 pc 0x104504, sp 0x7fdffffda11 pc 0x102510, sp 0x7fdffffe291 pc 0x40226f54, sp 0x7fdffffe351 done >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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