From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============4263374443640143045==" MIME-Version: 1.0 From: Chris Metcalf To: lkp@lists.01.org Subject: Re: [watchdog] fd036dc7957: WARNING: CPU: 0 PID: 1 at mm/memblock.c:1151 memblock_virt_alloc_internal+0x7e/0x142() Date: Mon, 13 Apr 2015 11:46:57 -0400 Message-ID: <552BE4F1.5040503@ezchip.com> In-Reply-To: <1428910375.6726.670.camel@intel.com> List-Id: --===============4263374443640143045== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 04/13/2015 03:32 AM, Huang Ying wrote: > FYI, we noticed the below changes on > > git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile.git mas= ter > commit fd036dc79578c6e9490af03eaf87c10e9d158c9c ("watchdog: add watchdog_= exclude sysctl to assist nohz") Thanks. This patch is going to go via a different route eventually, and = I've removed it from the tile tree. (The bug in question has also been fixed.) > > > +----------------------------------------------------------+------------+= ------------+ > | | 371532c270 |= fd036dc795 | > +----------------------------------------------------------+------------+= ------------+ > | boot_successes | 10 |= 0 | > | early-boot-hang | 1 |= | > | boot_failures | 0 |= 10 | > | WARNING:at_mm/memblock.c:#memblock_virt_alloc_internal() | 0 |= 10 | > | BUG:unable_to_handle_kernel | 0 |= 10 | > | Oops | 0 |= 10 | > | RIP:__bitmap_empty | 0 |= 10 | > | Kernel_panic-not_syncing:Fatal_exception | 0 |= 10 | > | backtrace:alloc_bootmem_cpumask_var | 0 |= 10 | > | backtrace:lockup_detector_init | 0 |= 10 | > | backtrace:kernel_init_freeable | 0 |= 10 | > +----------------------------------------------------------+------------+= ------------+ > > > [ 0.078023] Performance Events: Broken PMU hardware detected, using so= ftware events only. > [ 0.080002] Failed to access perfctr msr (MSR c1 is 0) > [ 0.082279] ------------[ cut here ]------------ > [ 0.083005] WARNING: CPU: 0 PID: 1 at mm/memblock.c:1151 memblock_virt= _alloc_internal+0x7e/0x142() > [ 0.084002] Modules linked in: > [ 0.085003] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.0.0-rc6-wl-ath= -05581-g50ad550 #1 > [ 0.086002] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIO= S 1.7.5-20140531_083030-gandalf 04/01/2014 > [ 0.087002] ffffffff81c7870e ffff88013ab77d78 ffffffff81937e53 000000= 0000000cfe > [ 0.089002] 0000000000000000 ffff88013ab77db8 ffffffff8107281a ffff88= 013ab77e28 > [ 0.091002] 0000000000000000 00000000ffffffff 0000000000000000 000000= 0000000400 > [ 0.093002] Call Trace: > [ 0.094006] [] dump_stack+0x4c/0x65 > [ 0.095005] [] warn_slowpath_common+0x8a/0xc0 > [ 0.096003] [] warn_slowpath_null+0x1a/0x20 > [ 0.097004] [] memblock_virt_alloc_internal+0x7e/0x= 142 > [ 0.098004] [] memblock_virt_alloc_try_nid+0x5f/0x95 > [ 0.099004] [] alloc_bootmem_cpumask_var+0x1d/0x24 > [ 0.100004] [] lockup_detector_init+0x28/0x9a > [ 0.101005] [] kernel_init_freeable+0x128/0x248 > [ 0.102004] [] ? rest_init+0x90/0x90 > [ 0.103003] [] kernel_init+0xe/0xf0 > [ 0.104004] [] ret_from_fork+0x58/0x90 > [ 0.105003] [] ? rest_init+0x90/0x90 > [ 0.106006] ---[ end trace 1bd7ba7378ad664f ]--- > [ 0.107006] BUG: unable to handle kernel NULL pointer dereference at = (null) > > > > Thanks, > Ying Huang > > > > _______________________________________________ > LKP mailing list > LKP(a)linux.intel.com > -- = Chris Metcalf, EZChip Semiconductor http://www.ezchip.com --===============4263374443640143045== Content-Type: text/html MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="attachment.html" PGh0bWw+CiAgPGhlYWQ+CiAgICA8bWV0YSBjb250ZW50PSJ0ZXh0L2h0bWw7IGNoYXJzZXQ9d2lu ZG93cy0xMjUyIgogICAgICBodHRwLWVxdWl2PSJDb250ZW50LVR5cGUiPgogIDwvaGVhZD4KICA8 Ym9keSB0ZXh0PSIjMDAwMDAwIiBiZ2NvbG9yPSIjRkZGRkZGIj4KICAgIE9uIDA0LzEzLzIwMTUg 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