Hi Christophe, First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0653161f0faca68b77b3f36fb4b4b9b8b07050e5 commit: 03fd42d458fb9cb69e712600bd69ff77ff3a45a8 powerpc/fixmap: Fix FIX_EARLY_DEBUG_BASE when page size is 256k date: 7 months ago config: powerpc64-randconfig-r034-20210111 (attached as .config) compiler: powerpc-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=03fd42d458fb9cb69e712600bd69ff77ff3a45a8 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 03fd42d458fb9cb69e712600bd69ff77ff3a45a8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All error/warnings (new ones prefixed by >>): fs/ntfs/mft.c: In function 'ntfs_sync_mft_mirror': >> fs/ntfs/mft.c:627:1: warning: the frame size of 2096 bytes is larger than >> 1024 bytes [-Wframe-larger-than=] 627 | } | ^ fs/ntfs/mft.c: In function 'write_mft_record_nolock': fs/ntfs/mft.c:839:1: warning: the frame size of 2096 bytes is larger than 1024 bytes [-Wframe-larger-than=] 839 | } | ^ -- fs/buffer.c: In function 'block_read_full_page': >> fs/buffer.c:2343:1: warning: the frame size of 2064 bytes is larger than >> 1024 bytes [-Wframe-larger-than=] 2343 | } | ^ -- arch/powerpc/kernel/head_44x.S: Assembler messages: >> arch/powerpc/kernel/head_44x.S:601: Error: invalid operands (*ABS* and *UND* >> sections) for `|' arch/powerpc/kernel/head_44x.S:684: Error: invalid operands (*ABS* and *UND* sections) for `|' -- fs/ext4/move_extent.c: In function 'mext_page_mkuptodate': >> fs/ext4/move_extent.c:227:1: warning: the frame size of 2048 bytes is larger >> than 1024 bytes [-Wframe-larger-than=] 227 | } | ^ -- fs/fat/dir.c: In function 'fat_add_new_entries': >> fs/fat/dir.c:1279:1: warning: the frame size of 2112 bytes is larger than >> 1024 bytes [-Wframe-larger-than=] 1279 | } | ^ fs/fat/dir.c: In function 'fat_alloc_new_dir': fs/fat/dir.c:1195:1: warning: the frame size of 2064 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1195 | } | ^ -- fs/fat/fatent.c: In function 'fat_free_clusters': >> fs/fat/fatent.c:632:1: warning: the frame size of 2080 bytes is larger than >> 1024 bytes [-Wframe-larger-than=] 632 | } | ^ fs/fat/fatent.c: In function 'fat_alloc_clusters': fs/fat/fatent.c:550:1: warning: the frame size of 2136 bytes is larger than 1024 bytes [-Wframe-larger-than=] 550 | } | ^ -- fs/exfat/fatent.c: In function 'exfat_zeroed_cluster': >> fs/exfat/fatent.c:311:1: warning: the frame size of 2064 bytes is larger >> than 1024 bytes [-Wframe-larger-than=] 311 | } | ^ -- drivers/media/common/saa7146/saa7146_hlp.c: In function 'calculate_clipping_registers_rect.isra.0': >> drivers/media/common/saa7146/saa7146_hlp.c:465:1: warning: the frame size of >> 1168 bytes is larger than 1024 bytes [-Wframe-larger-than=] 465 | } | ^ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for NETDEVICES Depends on NET Selected by - AKEBONO && PPC_47x WARNING: unmet direct dependencies detected for ETHERNET Depends on NETDEVICES && NET Selected by - AKEBONO && PPC_47x WARNING: unmet direct dependencies detected for NET_DEVLINK Depends on NET Selected by - BNXT && NETDEVICES && ETHERNET && NET_VENDOR_BROADCOM && PCI - NFP && NETDEVICES && ETHERNET && NET_VENDOR_NETRONOME && PCI && PCI_MSI && (VXLAN || VXLAN && (TLS && TLS_DEVICE || !TLS_DEVICE WARNING: unmet direct dependencies detected for FAILOVER Depends on NET Selected by - NET_FAILOVER && NETDEVICES WARNING: unmet direct dependencies detected for PAGE_POOL Depends on NET Selected by - BNXT && NETDEVICES && ETHERNET && NET_VENDOR_BROADCOM && PCI vim +601 arch/powerpc/kernel/head_44x.S e7f75ad01d590243 Dave Kleikamp 2010-03-05 577 e7f75ad01d590243 Dave Kleikamp 2010-03-05 578 /* Mask of required permission bits. Note that while we e7f75ad01d590243 Dave Kleikamp 2010-03-05 579 * do copy ESR:ST to _PAGE_RW position as trying to write e7f75ad01d590243 Dave Kleikamp 2010-03-05 580 * to an RO page is pretty common, we don't do it with e7f75ad01d590243 Dave Kleikamp 2010-03-05 581 * _PAGE_DIRTY. We could do it, but it's a fairly rare e7f75ad01d590243 Dave Kleikamp 2010-03-05 582 * event so I'd rather take the overhead when it happens e7f75ad01d590243 Dave Kleikamp 2010-03-05 583 * rather than adding an instruction here. We should measure e7f75ad01d590243 Dave Kleikamp 2010-03-05 584 * whether the whole thing is worth it in the first place e7f75ad01d590243 Dave Kleikamp 2010-03-05 585 * as we could avoid loading SPRN_ESR completely in the first e7f75ad01d590243 Dave Kleikamp 2010-03-05 586 * place... e7f75ad01d590243 Dave Kleikamp 2010-03-05 587 * e7f75ad01d590243 Dave Kleikamp 2010-03-05 588 * TODO: Is it worth doing that mfspr & rlwimi in the first e7f75ad01d590243 Dave Kleikamp 2010-03-05 589 * place or can we save a couple of instructions here ? e7f75ad01d590243 Dave Kleikamp 2010-03-05 590 */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 591 mfspr r12,SPRN_ESR e7f75ad01d590243 Dave Kleikamp 2010-03-05 592 li r13,_PAGE_PRESENT|_PAGE_ACCESSED e7f75ad01d590243 Dave Kleikamp 2010-03-05 593 rlwimi r13,r12,10,30,30 e7f75ad01d590243 Dave Kleikamp 2010-03-05 594 e7f75ad01d590243 Dave Kleikamp 2010-03-05 595 /* Load the PTE */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 596 /* Compute pgdir/pmd offset */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 597 rlwinm r12,r10,PPC44x_PGD_OFF_SHIFT,PPC44x_PGD_OFF_MASK_BIT,29 e7f75ad01d590243 Dave Kleikamp 2010-03-05 598 lwzx r11,r12,r11 /* Get pgd/pmd entry */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 599 e7f75ad01d590243 Dave Kleikamp 2010-03-05 600 /* Word 0 is EPN,V,TS,DSIZ */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 @601 li r12,PPC47x_TLB0_VALID | PPC47x_TLBE_SIZE e7f75ad01d590243 Dave Kleikamp 2010-03-05 602 rlwimi r10,r12,0,32-PAGE_SHIFT,31 /* Insert valid and page size*/ e7f75ad01d590243 Dave Kleikamp 2010-03-05 603 li r12,0 e7f75ad01d590243 Dave Kleikamp 2010-03-05 604 tlbwe r10,r12,0 e7f75ad01d590243 Dave Kleikamp 2010-03-05 605 e7f75ad01d590243 Dave Kleikamp 2010-03-05 606 /* XXX can we do better ? Need to make sure tlbwe has established e7f75ad01d590243 Dave Kleikamp 2010-03-05 607 * latch V bit in MMUCR0 before the PTE is loaded further down */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 608 #ifdef CONFIG_SMP e7f75ad01d590243 Dave Kleikamp 2010-03-05 609 isync e7f75ad01d590243 Dave Kleikamp 2010-03-05 610 #endif e7f75ad01d590243 Dave Kleikamp 2010-03-05 611 e7f75ad01d590243 Dave Kleikamp 2010-03-05 612 rlwinm. r12,r11,0,0,20 /* Extract pt base address */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 613 /* Compute pte address */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 614 rlwimi r12,r10,PPC44x_PTE_ADD_SHIFT,PPC44x_PTE_ADD_MASK_BIT,28 e7f75ad01d590243 Dave Kleikamp 2010-03-05 615 beq 2f /* Bail if no table */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 616 lwz r11,0(r12) /* Get high word of pte entry */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 617 e7f75ad01d590243 Dave Kleikamp 2010-03-05 618 /* XXX can we do better ? maybe insert a known 0 bit from r11 into the e7f75ad01d590243 Dave Kleikamp 2010-03-05 619 * bottom of r12 to create a data dependency... We can also use r10 e7f75ad01d590243 Dave Kleikamp 2010-03-05 620 * as destination nowadays e7f75ad01d590243 Dave Kleikamp 2010-03-05 621 */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 622 #ifdef CONFIG_SMP e7f75ad01d590243 Dave Kleikamp 2010-03-05 623 lwsync e7f75ad01d590243 Dave Kleikamp 2010-03-05 624 #endif e7f75ad01d590243 Dave Kleikamp 2010-03-05 625 lwz r12,4(r12) /* Get low word of pte entry */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 626 e7f75ad01d590243 Dave Kleikamp 2010-03-05 627 andc. r13,r13,r12 /* Check permission */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 628 e7f75ad01d590243 Dave Kleikamp 2010-03-05 629 /* Jump to common tlb load */ e7f75ad01d590243 Dave Kleikamp 2010-03-05 630 beq finish_tlb_load_47x e7f75ad01d590243 Dave Kleikamp 2010-03-05 631 :::::: The code at line 601 was first introduced by commit :::::: e7f75ad01d590243904c2d95ab47e6b2e9ef6dad powerpc/47x: Base ppc476 support :::::: TO: Dave Kleikamp <sha...@linux.vnet.ibm.com> :::::: CC: Josh Boyer <jwbo...@linux.vnet.ibm.com> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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