Date: Sun, 18 Mar 2012 15:50:04 +0800 From: Ka Man Tong <kmtong@gmail.com> To: freebsd-fs@freebsd.org Subject: ZFS kernel panic at zio_ddt_free Message-ID: <CAK6bu6th2b97h2rCswdtk%2BtgwYgan0soYNMyhk-CtZQAEH=FTA@mail.gmail.com>
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Hi, We are using FreeBSD 9.0 on amd64. Recently we have encountered many kernel panic. And now when the ZFS is mounted (and lastly re-imported using a fresh installation of FreeBSD on i386), the kernel hangs with the stack dump. ... #6 0xc7490154 at zio_ddt_free+0x54 #7 0xc7490411 at zio_execute+0xa1 #8 0xc0a571ba at taskqueue_run_locked+0xca #9 0xc0a580ac at taskqueue_thread_loop+0xbc #10 0xc09ea997 at fork_exit+0x97 #11 0xc0d32b04 at fork_trampoline+0x8 After google for a while, it seems that the function zio_ddt_free is not handled correctly. http://mail.opensolaris.org/pipermail/zfs-discuss/2012-February/050972.html We don't know whether our case is the same as the case in zfs-discuss group. And we would like to take a try on the patch first. Any help would be appreciated. Thanks.
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