Hello, kernel test robot noticed "WARNING:at_block/bdev.c:#set_init_blocksize" on: commit: 01671335e600baacb98c70cdb010d539e5f615c2 ("[RFC 3/4] block: set mapping order for the block cache in set_init_blocksize") url: https://github.com/intel-lab-lkp/linux/commits/Pankaj-Raghav/fs-Allow-fine-grained-control-of-folio-sizes/20230621-172322 base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/all/20230621083823.1724337-4-p.raghav@samsung.com/ patch subject: [RFC 3/4] block: set mapping order for the block cache in set_init_blocksize in testcase: boot compiler: gcc-12 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202306241656.fa99b0e0-oliver.sang@intel.com [ 20.303844][ T130] ------------[ cut here ]------------ [ 20.304791][ T130] WARNING: CPU: 1 PID: 130 at block/bdev.c:142 set_init_blocksize (block/bdev.c:142 (discriminator 1)) [ 20.306150][ T130] Modules linked in: sr_mod cdrom sg ata_generic bochs intel_rapl_msr ata_piix intel_rapl_common drm_vram_helper crct10dif_pclmul crc32_pclmul ppdev crc32c_intel ghash_clmulni_intel sha512_ssse3 drm_kms_helper rapl libata syscopyarea sysfillrect sysimgblt drm_ttm_helper ttm joydev ipmi_devintf parport_pc ipmi_msghandler serio_raw i2c_piix4 parport fuse drm ip_tables [ 20.310835][ T130] CPU: 1 PID: 130 Comm: systemd-udevd Not tainted 6.4.0-rc4-00504-g01671335e600 #1 [ 20.312212][ T130] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 20.313760][ T130] RIP: 0010:set_init_blocksize (block/bdev.c:142 (discriminator 1)) [ 20.314621][ T130] Code: c1 e2 08 48 09 d0 48 0d 00 e0 03 00 48 89 86 98 00 00 00 c3 cc cc cc cc 3d ff 0f 00 00 0f 86 7a ff ff ff c1 e8 09 89 c6 eb 91 <0f> 0b eb cc ba 09 00 00 00 eb 96 66 66 2e 0f 1f 84 00 00 00 00 00 All code ======== 0: c1 e2 08 shl $0x8,%edx 3: 48 09 d0 or %rdx,%rax 6: 48 0d 00 e0 03 00 or $0x3e000,%rax c: 48 89 86 98 00 00 00 mov %rax,0x98(%rsi) 13: c3 retq 14: cc int3 15: cc int3 16: cc int3 17: cc int3 18: 3d ff 0f 00 00 cmp $0xfff,%eax 1d: 0f 86 7a ff ff ff jbe 0xffffffffffffff9d 23: c1 e8 09 shr $0x9,%eax 26: 89 c6 mov %eax,%esi 28: eb 91 jmp 0xffffffffffffffbb 2a:* 0f 0b ud2 <-- trapping instruction 2c: eb cc jmp 0xfffffffffffffffa 2e: ba 09 00 00 00 mov $0x9,%edx 33: eb 96 jmp 0xffffffffffffffcb 35: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 3c: 00 00 00 00 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: eb cc jmp 0xffffffffffffffd0 4: ba 09 00 00 00 mov $0x9,%edx 9: eb 96 jmp 0xffffffffffffffa1 b: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 12: 00 00 00 00 [ 20.317420][ T130] RSP: 0000:ffffadd780567c48 EFLAGS: 00010282 [ 20.318345][ T130] RAX: 00000000fffffd00 RBX: ffff8d79b1670c00 RCX: 000000000000001d [ 20.319432][ T130] RDX: 00000000fffffffd RSI: ffff8d79b16710f8 RDI: ffff8d79b1670c00 [ 20.320641][ T130] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000584843 [ 20.321827][ T130] R10: 0000000000000000 R11: 0000000000586c43 R12: ffff8d7998831400 [ 20.322912][ T130] R13: ffff8d7998831400 R14: ffff8d7a7aca2800 R15: ffff8d79988315f8 [ 20.324947][ T130] FS: 0000000000000000(0000) GS:ffff8d7cafd00000(0063) knlGS:00000000f7929b00 [ 20.326981][ T130] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 20.328939][ T130] CR2: 0000000059b91a8c CR3: 0000000117ac4000 CR4: 00000000000406e0 [ 20.330843][ T130] Call Trace: [ 20.332322][ T130] [ 20.333553][ T130] ? set_init_blocksize (block/bdev.c:142 (discriminator 1)) [ 20.335087][ T130] ? __warn (kernel/panic.c:673) [ 20.336555][ T130] ? set_init_blocksize (block/bdev.c:142 (discriminator 1)) [ 20.337984][ T130] ? report_bug (lib/bug.c:180 lib/bug.c:219) [ 20.339449][ T130] ? handle_bug (arch/x86/kernel/traps.c:324) [ 20.340945][ T130] ? exc_invalid_op (arch/x86/kernel/traps.c:345 (discriminator 1)) [ 20.342386][ T130] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:568) [ 20.344022][ T130] ? set_init_blocksize (block/bdev.c:142 (discriminator 1)) [ 20.345530][ T130] blkdev_get_whole (block/bdev.c:626) [ 20.346950][ T130] blkdev_get_by_dev (block/bdev.c:837) [ 20.348464][ T130] ? __pfx_blkdev_open (block/fops.c:474) [ 20.349941][ T130] blkdev_open (block/fops.c:494) [ 20.351309][ T130] do_dentry_open (fs/open.c:920) [ 20.352846][ T130] do_open (fs/namei.c:3639) [ 20.354190][ T130] ? open_last_lookups (fs/namei.c:3583) [ 20.355564][ T130] path_openat (fs/namei.c:3792) [ 20.356950][ T130] do_filp_open (fs/namei.c:3818) [ 20.358276][ T130] do_sys_openat2 (fs/open.c:1356) [ 20.359601][ T130] __ia32_compat_sys_openat (fs/open.c:1430) [ 20.361103][ T130] __do_fast_syscall_32 (arch/x86/entry/common.c:112 arch/x86/entry/common.c:178) [ 20.362534][ T130] do_fast_syscall_32 (arch/x86/entry/common.c:203) [ 20.363986][ T130] entry_SYSENTER_compat_after_hwframe (arch/x86/entry/entry_64_compat.S:122) [ 20.365697][ T130] RIP: 0023:0xf7f90589 [ 20.366940][ T130] Code: 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 All code ======== 0: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi ... 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24:* 89 e5 mov %esp,%ebp <-- trapping instruction 26: 0f 34 sysenter 28: cd 80 int $0x80 2a: 5d pop %rbp 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi Code starting with the faulting instruction =========================================== 0: 5d pop %rbp 1: 5a pop %rdx 2: 59 pop %rcx 3: c3 retq 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi f: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi [ 20.370969][ T130] RSP: 002b:00000000ffd9b010 EFLAGS: 00200206 ORIG_RAX: 0000000000000127 [ 20.372809][ T130] RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000578c6540 [ 20.374652][ T130] RDX: 00000000000a8800 RSI: 0000000000000000 RDI: 000000005663b8ad [ 20.376552][ T130] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 20.378381][ T130] R10: 0000000000000000 R11: 0000000000200206 R12: 0000000000000000 [ 20.380235][ T130] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 20.381888][ T130] [ 20.382968][ T130] ---[ end trace 0000000000000000 ]--- LKP: ttyS0: 194: /lkp/lkp/src/bin/run-lkp /lkp/jobs/scheduled/vm-meta-307/boot-1-debian-11.1-i386-20220923.cgz-01671335e600-20230622-46155-yec2o-1.yaml [ 29.071854][ T211] is_virt=true [ 29.071868][ T211] [ 30.394619][ T211] lkp: kernel tainted state: 0 [ 30.394639][ T211] [ 31.373739][ T211] LKP: stdout: 194: Kernel tests: Boot OK! [ 31.373784][ T211] LKP: ttyS0: 194: LKP: rebooting forcely [ 35.497053][ T211] LKP: stdout: 194: HOSTNAME vm-snb, MAC 52:54:00:12:34:56, kernel 6.4.0-rc4-00504-g01671335e600 1 [ 35.497067][ T211] [ 35.674956][ T211] install debs round one: dpkg -i --force-confdef --force-depends /opt/deb/gawk_1%3a5.1.0-1_i386.deb [ 35.674975][ T211] [ 35.679306][ T211] Selecting previously unselected package gawk. [ 35.679315][ T211] [ 35.684028][ T211] (Reading database ... 16439 files and directories currently installed.) [ 35.684040][ T211] [ 35.688683][ T211] Preparing to unpack .../deb/gawk_1%3a5.1.0-1_i386.deb ... [ 35.688693][ T211] [ 35.691823][ T211] Unpacking gawk (1:5.1.0-1) ... [ 35.691830][ T211] [ 35.694690][ T211] Setting up gawk (1:5.1.0-1) ... [ 35.694697][ T211] [ 35.696731][ T211] NO_NETWORK= [ 35.696739][ T211] [ 35.730000][ T194] sysrq: Emergency Sync [ 35.730860][ T57] Emergency Sync complete [ 35.731988][ T194] sysrq: Resetting Kboot worker: lkp-worker23 Elapsed time: 60 kvm=( qemu-system-x86_64 -enable-kvm -cpu SandyBridge -kernel $kernel -initrd initrd-vm-meta-307.cgz -m 16384 -smp 2 To reproduce: # build kernel cd linux cp config-6.4.0-rc4-00504-g01671335e600 .config make HOSTCC=gcc-12 CC=gcc-12 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules make HOSTCC=gcc-12 CC=gcc-12 ARCH=x86_64 INSTALL_MOD_PATH= modules_install cd find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k -m modules.cgz job-script # job-script is attached in this email # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki