Date: Thu, 20 Aug 2009 21:49:32 +0200 From: Ulrich =?utf-8?B?U3DDtnJsZWlu?= <uqs@spoerlein.net> To: emulation@freebsd.org Subject: acquiring duplicate lock of same type: "ftlk" Message-ID: <20090820194932.GA66475@acme.spoerlein.net>
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Hi, I'm on RELENG_8/amd64 now and while using flash inside FF3 I observed the following acquiring duplicate lock of same type: "ftlk" 1st ftlk @ /data/freebsd-head/sys/modules/linux/../../compat/linux/linux_futex.c:177 2nd ftlk @ /data/freebsd-head/sys/modules/linux/../../compat/linux/linux_futex.c:203 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x8ef _sx_xlock() at _sx_xlock+0x55 futex_get0() at futex_get0+0xfe linux_sys_futex() at linux_sys_futex+0x96 ia32_syscall() at ia32_syscall+0x19c Xint0x80_syscall() at Xint0x80_syscall+0x95 --- syscall (240, Linux ELF32, linux_sys_futex), rip = 0x287d89b3, rsp = 0xffffaa8c, rbp = 0x4000001 --- I'm running with linux-f8 (f10 gave me trouble last time I tried on CURRENT) and flash10. Is this a known problem? Is someone working on this or shall I file a PR? Regards, Uli PS: please keep me CC'ed. thx.
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