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Date: Sun, 26 Oct 2008 12:54:48 +0100 From: "Mikko C." <mikko.cal@...il.com> To: Andres Freund <andres@...razel.de> CC: Jiri Kosina <jkosina@...e.cz>, linux-kernel@...r.kernel.org Subject: Re: Random problems with 2.6.28-rc1-git1 Andres Freund ha scritto: > Hi, > > On Sunday 26 October 2008 08:25:39 Mikko C. wrote: > >>> If rmmod never returns, alt-sysrq-t output should show us where it got >>> stuck. >>> >> Thanks for your answer >> I tried Alt-Sysrq-T after a rmmod, but all I get is: >> "SysRq : Show State" >> Is it normal? Does it dump the information to a log? >> Sorry but I never used sysrq in the past. >> > You propably have to set the loglevel to something higher before. Either use > dmesg -n 6 or so or sysrq-6. > > Andres > Ok, got it. Oct 26 12:39:56 gentoo rmmod D ffffffff80532a80 0 5264 5088 Oct 26 12:39:56 gentoo ffff880079b5bd78 0000000000000082 0000000000000000 ffff880079b5bd3c Oct 26 12:39:56 gentoo ffffffff806d3000 ffff88007fafb600 ffff88007f863000 ffff88007fafb850 Oct 26 12:39:56 gentoo 00000001895a50c0 00000000fffe90e8 ffff88007fafb850 00000000000160d1 Oct 26 12:39:56 gentoo Call Trace: Oct 26 12:39:56 gentoo [<ffffffff8052332d>] schedule_timeout+0xad/0xf0 Oct 26 12:39:56 gentoo [<ffffffff80522578>] wait_for_common+0x148/0x170 Oct 26 12:39:56 gentoo [<ffffffff80231770>] default_wake_function+0x0/0x10 Oct 26 12:39:56 gentoo [<ffffffff8022da33>] __wake_up+0x43/0x70 Oct 26 12:39:56 gentoo [<ffffffff8024a464>] flush_cpu_workqueue+0x44/0x90 Oct 26 12:39:56 gentoo [<ffffffff8024a690>] wq_barrier_func+0x0/0x10 Oct 26 12:39:56 gentoo [<ffffffff8025e150>] __try_stop_module+0x0/0x30 Oct 26 12:39:56 gentoo [<ffffffff8024a5cb>] flush_workqueue+0x3b/0x60 Oct 26 12:39:56 gentoo [<ffffffff8025e150>] __try_stop_module+0x0/0x30 Oct 26 12:39:56 gentoo [<ffffffff8026997c>] __stop_machine+0x10c/0x130 Oct 26 12:39:56 gentoo [<ffffffff80261ced>] sys_delete_module+0x17d/0x290 Oct 26 12:39:56 gentoo [<ffffffff80288c68>] do_munmap+0x348/0x390 Oct 26 12:39:56 gentoo [<ffffffff803a0d51>] __up_write+0x21/0x150 Oct 26 12:39:56 gentoo [<ffffffff8020b94b>] system_call_fastpath+0x16/0x1b Let me know if it's enough. Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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