On Sat, Dec 21, 2019 at 08:32:38AM +0000, Christophe Leroy wrote: > A few changes to retrieve DAR and DSISR from struct regs > instead of retrieving them directly, as they may have > changed due to a TLB miss. > > Also modifies hash_page() and friends to work with virtual > data addresses instead of physical ones. Same on load_up_fpu() > and load_up_altivec(). > > Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx> This patch results in qemu boot failures (mac99 with pmac32_defconfig). Images fail silently; there is no console output. Reverting the patch fixes the problem. Bisect log is attached below. Assuming this was tested on real hardware, am I correct to assume that qemu for ppc32 (more specifically, qemu's mac99 and g3beige machines) no longer works with the upstream kernel ? Thanks, Guenter --- # bad: [33b40134e5cfbbccad7f3040d1919889537a3df7] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net # good: [d4e9056daedca3891414fe3c91de3449a5dad0f2] initramfs: do not show compression mode choice if INITRAMFS_SOURCE is empty git bisect start '33b40134e5cf' 'd4e9056daedc' # good: [9717c1cea16e3eae81ca226f4c3670bb799b61ad] Merge tag 'drm-next-2020-02-04' of git://anongit.freedesktop.org/drm/drm git bisect good 9717c1cea16e3eae81ca226f4c3670bb799b61ad # bad: [4c25df5640ae6e4491ee2c50d3f70c1559ef037d] Merge branch 'topic/user-access-begin' into next git bisect bad 4c25df5640ae6e4491ee2c50d3f70c1559ef037d # good: [846a17a53aeeee426cbc1252f517a6660eab1427] powerpc/powernv: Use common code for the symbol_map export git bisect good 846a17a53aeeee426cbc1252f517a6660eab1427 # good: [afe1ec5ab83029baf0f8368a255dc6b998bde576] powerpc/8xx: Split breakpoint exception git bisect good afe1ec5ab83029baf0f8368a255dc6b998bde576 # bad: [43e76cd368fbb67e767da5363ffeaa3989993c8c] powerpc: Do not consider weak unresolved symbol relocations as bad git bisect bad 43e76cd368fbb67e767da5363ffeaa3989993c8c # bad: [af1725d2493dcad4eeb7e63141678181fcd8a2ff] powerpc/kconfig: Move CONFIG_PPC32 into Kconfig.cputype git bisect bad af1725d2493dcad4eeb7e63141678181fcd8a2ff # good: [94dd54c51a410b9ffa6356c3ed2ab0317f998ded] powerpc/32s: Avoid crossing page boundary while changing SRR0/1. git bisect good 94dd54c51a410b9ffa6356c3ed2ab0317f998ded # bad: [0f9aee0cb9da7db7d96f63cfa2dc5e4f1bffeb87] powerpc/mm: Don't log user reads to 0xffffffff git bisect bad 0f9aee0cb9da7db7d96f63cfa2dc5e4f1bffeb87 # bad: [cd08f109e26231b279bcc0388428afcac6408ec6] powerpc/32s: Enable CONFIG_VMAP_STACK git bisect bad cd08f109e26231b279bcc0388428afcac6408ec6 # first bad commit: [cd08f109e26231b279bcc0388428afcac6408ec6] powerpc/32s: Enable CONFIG_VMAP_STACK
