From: =?UTF-8?B?VG9yYWxmIEbDtnJzdGVy?= Subject: fuzzy'ing a 3.10-rc7 gives warning ext4_da_update_reserve_space Date: Sun, 23 Jun 2013 13:55:22 +0200 Message-ID: <51C6E22A.5090206@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE To: linux-ext4@vger.kernel.org Return-path: Received: from mout.gmx.net ([212.227.17.21]:57918 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751609Ab3FWLz1 (ORCPT ); Sun, 23 Jun 2013 07:55:27 -0400 Received: from mailout-de.gmx.net ([10.1.76.17]) by mrigmx.server.lan (mrigmx002) with ESMTP (Nemesis) id 0M4lZj-1U5Win0uSr-00yzeW for ; Sun, 23 Jun 2013 13:55:24 +0200 Sender: linux-ext4-owner@vger.kernel.org List-ID: I do regular fuzz testing of upcoming kernel versions. So the following warning doesn't occurred at a productive system, but I= never saw it before during tests : 2013-06-23T12:28:02.826+02:00 n22 kernel: EXT4-fs warning (device loop1= ): ext4_da_update_reserve_space:350: ext4_da_update_reserve_space: ino = 32215, used 17 with only 13 reserved data blocks 2013-06-23T12:28:02.826+02:00 n22 kernel: ------------[ cut here ]-----= ------- 2013-06-23T12:28:02.826+02:00 n22 kernel: WARNING: at fs/ext4/inode.c:3= 51 ext4_da_update_reserve_space+0x258/0x270() 2013-06-23T12:28:02.826+02:00 n22 kernel: Modules linked in: loop ip6t_= REJECT ip6table_filter ip6_tables ipt_MASQUERADE xt_owner xt_LOG xt_lim= it xt_multiport ipt_REJECT xt_tcpudp xt_recent xt_conntrack iptable_nat= nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptab= le_filter ip_tables x_tables af_packet pppoe pppox ppp_generic slhc bri= dge stp ipv6 llc tun fuse dm_mod coretemp kvm_intel kvm aesni_intel i91= 5 xts hid_cherry aes_i586 cfbfillrect cfbimgblt hid_generic i2c_algo_bi= t cfbcopyarea usbhid intel_agp uvcvideo lrw videobuf2_vmalloc videobuf2= _memops videobuf2_core usblp hid gf128mul ablk_helper cryptd arc4 video= dev iwldvm mac80211 fbcon intel_gtt bitblit snd_hda_codec_conexant soft= cursor font drm_kms_helper drm psmouse 8250_pci agpgart 8250 snd_hda_in= tel snd_hda_codec snd_pcm iwlwifi e1000e tpm_tis sr_mod snd_page_alloc = cfg80211 snd_timer fb sdhci_pci evdev thinkpad_acpi serial_core ac tpm = cdrom sdhci nvram snd mmc_core rfkill soundcore i2c_i801 thermal wmi fb= dev t pm_bios i2c_core ptp pps_core battery video acpi_cpufreq button mperf p= rocessor thermal_sys hwmon [last unloaded: microcode] 2013-06-23T12:28:02.826+02:00 n22 kernel: CPU: 2 PID: 5857 Comm: kworke= r/u16:0 Not tainted 3.10.0-rc7+ #1 2013-06-23T12:28:02.826+02:00 n22 kernel: Hardware name: LENOVO 4180F65= /4180F65, BIOS 83ET73WW (1.43 ) 11/30/2012 2013-06-23T12:28:02.826+02:00 n22 kernel: Workqueue: writeback bdi_writ= eback_workfn (flush-7:1) 2013-06-23T12:28:02.826+02:00 n22 kernel: c14a4b9a c14a4b9a e98d3a20 c1= 3d3ced e98d3a48 c1033e84 c1490d45 c14a4b9a 2013-06-23T12:28:02.826+02:00 n22 kernel: 0000015f c119f6b8 c119f6b8 00= 000011 e8e3e3b0 00000025 e98d3a58 c1033ec2 2013-06-23T12:28:02.826+02:00 n22 kernel: 00000009 00000000 e98d3aa4 c1= 19f6b8 ef786400 c13f5d71 0000015e c149d754 2013-06-23T12:28:02.827+02:00 n22 kernel: Call Trace: 2013-06-23T12:28:02.827+02:00 n22 kernel: [] dump_stack+0x16/= 0x18 2013-06-23T12:28:02.827+02:00 n22 kernel: [] warn_slowpath_co= mmon+0x64/0x80 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? ext4_da_update= _reserve_space+0x258/0x270 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? ext4_da_update= _reserve_space+0x258/0x270 2013-06-23T12:28:02.827+02:00 n22 kernel: [] warn_slowpath_nu= ll+0x22/0x30 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ext4_da_update_r= eserve_space+0x258/0x270 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ext4_ext_map_blo= cks+0xfb7/0x1bc0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? kmem_cache_all= oc+0x77/0x150 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? mempool_alloc_= slab+0x13/0x20 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? bvec_alloc+0x5= 8/0xf0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? generic_make_r= equest+0xa3/0xd0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? submit_bio+0x5= d/0x140 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? ext4_es_lru_ad= d+0x20/0x70 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ext4_map_blocks+= 0x312/0x500 2013-06-23T12:28:02.827+02:00 n22 kernel: [] mpage_da_map_and= _submit+0x131/0x5e0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? __ext4_journal= _start_sb+0x74/0x150 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ext4_da_writepag= es+0x339/0x5d0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? set_page_dirty= _lock+0x50/0x50 2013-06-23T12:28:02.827+02:00 n22 kernel: [] do_writepages+0x= 21/0x40 2013-06-23T12:28:02.827+02:00 n22 kernel: [] __writeback_sing= le_inode+0x38/0x240 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? wake_up_bit+0x= 23/0x30 2013-06-23T12:28:02.827+02:00 n22 kernel: [] writeback_sb_ino= des+0x16b/0x2f0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] __writeback_inod= es_wb+0x7c/0xb0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] wb_writeback+0x2= 2a/0x2c0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] wb_do_writeback+= 0x9c/0x1d0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? ttwu_do_wakeup= +0x18/0x130 2013-06-23T12:28:02.827+02:00 n22 kernel: [] bdi_writeback_wo= rkfn+0x7a/0x1c0 2013-06-23T12:28:02.827+02:00 n22 kernel: [] ? wake_up_proces= s+0x1f/0x40 2013-06-23T12:28:02.827+02:00 n22 kernel: [] process_one_work= +0x10e/0x390 2013-06-23T12:28:02.828+02:00 n22 kernel: [] ? start_worker+0= x25/0x30 2013-06-23T12:28:02.828+02:00 n22 kernel: [] ? manage_workers= =2Eisra.24+0x188/0x290 2013-06-23T12:28:02.828+02:00 n22 kernel: [] worker_thread+0x= 102/0x320 2013-06-23T12:28:02.828+02:00 n22 kernel: [] ? manage_workers= =2Eisra.24+0x290/0x290 2013-06-23T12:28:02.828+02:00 n22 kernel: [] kthread+0x94/0xa= 0 2013-06-23T12:28:02.828+02:00 n22 kernel: [] ret_from_kernel_= thread+0x1b/0x28 2013-06-23T12:28:02.828+02:00 n22 kernel: [] ? flush_kthread_= worker+0x90/0x90 2013-06-23T12:28:02.828+02:00 n22 kernel: ---[ end trace b176e82a59e909= b3 ]--- The file system is 257 MB big (created at a file on a tmpfs) and then m= ounted onto a directory accessible from a chrooted 32 bit Gentoo Linux. In the man while that fs was overwritten however. --=20 MfG/Sincerely Toralf F=C3=B6rster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html