Hi Kees, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3aaf0a27ffc29b19a62314edd684b9bc6346f9a8 commit: c637693b20da8706b7f48d96882c9c80ae935151 ubsan: remove UBSAN_MISC in favor of individual options date: 7 weeks ago config: powerpc-randconfig-r001-20210202 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 275c6af7d7f1ed63a03d05b4484413e447133269) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c637693b20da8706b7f48d96882c9c80ae935151 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout c637693b20da8706b7f48d96882c9c80ae935151 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/scsi/BusLogic.c:51: >> drivers/scsi/FlashPoint.c:1744:12: warning: stack frame size of 1552 bytes in function 'FlashPoint_HandleInterrupt' [-Wframe-larger-than=] static int FlashPoint_HandleInterrupt(void *pcard) ^ 1 warning generated. vim +/FlashPoint_HandleInterrupt +1744 drivers/scsi/FlashPoint.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 1734 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1735 /*--------------------------------------------------------------------- ^1da177e4c3f41 Linus Torvalds 2005-04-16 1736 * d8b6b8bd8a99ee Alexey Dobriyan 2006-03-08 1737 * Function: FlashPoint_HandleInterrupt ^1da177e4c3f41 Linus Torvalds 2005-04-16 1738 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 1739 * Description: This is our entry point when an interrupt is generated ^1da177e4c3f41 Linus Torvalds 2005-04-16 1740 * by the card and the upper level driver passes it on to ^1da177e4c3f41 Linus Torvalds 2005-04-16 1741 * us. ^1da177e4c3f41 Linus Torvalds 2005-04-16 1742 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 1743 *---------------------------------------------------------------------*/ 391e2f25601e34 Khalid Aziz 2013-05-16 @1744 static int FlashPoint_HandleInterrupt(void *pcard) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1745 { 69eb2ea4779336 Alexey Dobriyan 2006-03-08 1746 struct sccb *currSCCB; db038cf86fc63d Alexey Dobriyan 2006-03-08 1747 unsigned char thisCard, result, bm_status, bm_int_st; c823feeb33161c Alexey Dobriyan 2006-03-08 1748 unsigned short hp_int; db038cf86fc63d Alexey Dobriyan 2006-03-08 1749 unsigned char i, target; 391e2f25601e34 Khalid Aziz 2013-05-16 1750 struct sccb_card *pCurrCard = pcard; 391e2f25601e34 Khalid Aziz 2013-05-16 1751 u32 ioport; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1752 391e2f25601e34 Khalid Aziz 2013-05-16 1753 thisCard = pCurrCard->cardIndex; 391e2f25601e34 Khalid Aziz 2013-05-16 1754 ioport = pCurrCard->ioPort; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1755 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1756 MDISABLE_INT(ioport); ^1da177e4c3f41 Linus Torvalds 2005-04-16 1757 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1758 if ((bm_int_st = RD_HARPOON(ioport + hp_int_status)) & EXT_STATUS_ON) 391e2f25601e34 Khalid Aziz 2013-05-16 1759 bm_status = RD_HARPOON(ioport + hp_ext_status) & 391e2f25601e34 Khalid Aziz 2013-05-16 1760 (unsigned char)BAD_EXT_STATUS; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1761 else ^1da177e4c3f41 Linus Torvalds 2005-04-16 1762 bm_status = 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1763 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1764 WR_HARPOON(ioport + hp_int_mask, (INT_CMD_COMPL | SCSI_INTERRUPT)); ^1da177e4c3f41 Linus Torvalds 2005-04-16 1765 391e2f25601e34 Khalid Aziz 2013-05-16 1766 while ((hp_int = RDW_HARPOON((ioport + hp_intstat)) & 391e2f25601e34 Khalid Aziz 2013-05-16 1767 FPT_default_intena) | bm_status) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 1768 391e2f25601e34 Khalid Aziz 2013-05-16 1769 currSCCB = pCurrCard->currentSCCB; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1770 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1771 if (hp_int & (FIFO | TIMEOUT | RESET | SCAM_SEL) || bm_status) { 5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1772 result = 391e2f25601e34 Khalid Aziz 2013-05-16 1773 FPT_SccbMgr_bad_isr(ioport, thisCard, pCurrCard, 5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1774 hp_int); 5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1775 WRW_HARPOON((ioport + hp_intstat), 5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1776 (FIFO | TIMEOUT | RESET | SCAM_SEL)); ^1da177e4c3f41 Linus Torvalds 2005-04-16 1777 bm_status = 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1778 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1779 if (result) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 1780 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1781 MENABLE_INT(ioport); 5c1b85e209af41 Alexey Dobriyan 2006-03-08 1782 return result; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1783 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 1784 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 1785 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1786 else if (hp_int & ICMD_COMP) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 1787 ^1da177e4c3f41 Linus Torvalds 2005-04-16 1788 if (!(hp_int & BUS_FREE)) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 1789 /* Wait for the BusFree before starting a new command. We ^1da177e4c3f41 Linus Torvalds 2005-04-16 1790 must also check for being reselected since the BusFree ^1da177e4c3f41 Linus Torvalds 2005-04-16 1791 may not show up if another device reselects us in 1.5us or ^1da177e4c3f41 Linus Torvalds 2005-04-16 1792 less. SRR Wednesday, 3/8/1995. ^1da177e4c3f41 Linus Torvalds 2005-04-16 1793 */ 5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1794 while (! 5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1795 (RDW_HARPOON((ioport + hp_intstat)) & 5c04a7b8981f28 Alexey Dobriyan 2006-03-08 1796 (BUS_FREE | RSEL))) ; ^1da177e4c3f41 Linus Torvalds 2005-04-16 1797 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 1798 391e2f25601e34 Khalid Aziz 2013-05-16 1799 if (pCurrCard->globalFlags & F_HOST_XFER_ACT) ^1da177e4c3f41 Linus Torvalds 2005-04-16 1800 47b5d69c4aa753 James Bottomley 2005-04-24 1801 FPT_phaseChkFifo(ioport, thisCard); ^1da177e4c3f41 Linus Torvalds 2005-04-16 1802 :::::: The code at line 1744 was first introduced by commit :::::: 391e2f25601e34a7d7e5dc155e487bc58dffd8c6 [SCSI] BusLogic: Port driver to 64-bit. :::::: TO: Khalid Aziz <khalid.aziz@xxxxxxxxxx> :::::: CC: James Bottomley <JBottomley@xxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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