From: "Michael D. Setzer II" Subject: Re: Error in linux-3.0.72 build. Date: Sat, 06 Apr 2013 22:02:08 +1000 Message-ID: <51600EC0.1522.21A5AE@msetzerii.gmail.com> References: <515FF835.28644.1FF1E@msetzerii.gmail.com>, <20130406112657.GA3625@pd.tnic> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT To: Borislav Petkov , linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org Return-path: In-reply-to: <20130406112657.GA3625@pd.tnic> Content-description: Mail message body Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On 6 Apr 2013 at 13:26, Borislav Petkov wrote: Date sent: Sat, 6 Apr 2013 13:26:57 +0200 From: Borislav Petkov To: "Michael D. Setzer II" Copies to: linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org Subject: Re: Error in linux-3.0.72 build. > On Sat, Apr 06, 2013 at 08:25:57PM +1000, Michael D. Setzer II wrote: > > Just downloaded new kernels, and find this error in build. > > > > fs/built-in.o: In function `find_group_flex': > > /home/msetzerii/data/linux-3.0.72/fs/ext4/ialloc.c:359: undefined > > reference to `__udivdi3' > > /home/msetzerii/data/linux-3.0.72/fs/ext4/ialloc.c:374: undefined > > reference to `__udivdi3' > > make: *** [.tmp_vmlinux1] Error 1 > > Looks like your compiler is generating 64-bit division which is a call > into libgcc. Which gcc version are you using? > > +ext4 folks. Did a diff on the new ialloc.c and the previous one from 3.0.71 348,349c348,349 < ext4_fsblk_t blocks_per_flex = sbi->s_blocks_per_group * flex_size; < ext4_fsblk_t flexbg_free_blocks; --- > int blocks_per_flex = sbi->s_blocks_per_group * flex_size; > int flexbg_free_blocks; 358c358 < flexbg_free_blocks = atomic64_read(&flex_group[best_flex].free_blocks); --- > flexbg_free_blocks = atomic_read(&flex_group[best_flex].free_blocks); 373c373 < flexbg_free_blocks = atomic64_read(&flex_group[i].free_blocks); --- > flexbg_free_blocks = atomic_read(&flex_group[i].free_blocks); 383,384c383,384 < ((atomic64_read(&flex_group[i].free_blocks) > < atomic64_read(&flex_group[best_flex].free_blocks)) && --- > ((atomic_read(&flex_group[i].free_blocks) > > atomic_read(&flex_group[best_flex].free_blocks)) && 390c390 < !atomic64_read(&flex_group[best_flex].free_blocks)) --- > !atomic_read(&flex_group[best_flex].free_blocks)) 409d408 < __u64 free_blocks; 410a410 > __u32 free_blocks; 427c427 < stats->free_blocks = atomic64_read(&flex_group[g].free_blocks); --- > stats->free_blocks = atomic_read(&flex_group[g].free_blocks); > > -- > Regards/Gruss, > Boris. > > Sent from a fat crate under my desk. Formatting is fine. > -- +----------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor Guam Community College Computer Center mailto:mikes@kuentos.guam.net mailto:msetzerii@gmail.com http://www.guam.net/home/mikes Guam - Where America's Day Begins G4L Disk Imaging Project maintainer http://sourceforge.net/projects/g4l/ +----------------------------------------------------------+ http://setiathome.berkeley.edu (Original) Number of Seti Units Returned: 19,471 Processing time: 32 years, 290 days, 12 hours, 58 minutes (Total Hours: 287,489) BOINC@HOME CREDITS SETI 14361044.287140 | EINSTEIN 10723942.979852 ROSETTA 6832434.144171 | ABC 15903532.519753