Hi Heinrich, On Sun, 18 Jun 2023 at 11:12, Heinrich Schuchardt <xypron.g...@gmx.de> wrote: > > Hello Simon, > > from origin/next I build qemu_arm64_defconfig with CONFIG_CMD_BIND=yes. > > I ran the image with: > > qemu-system-aarch64 -semihosting \ > -machine virt,gic-version=max -accel $(ACCEL) -m 1G -smp cores=2 \ > -bios u-boot.bin -cpu $(CPU) -nographic -gdb tcp::1234 \ > -netdev user,id=eth0,tftp=tftp -device e1000,netdev=eth0,romfile= \ > -drive if=none,file=arm64.img,format=raw,id=mydisk \ > -drive if=pflash,format=raw,index=1,file=envstore.img \ > -device virtio-rng-pci \ > -device ich9-ahci,id=ahci -device ide-hd,drive=mydisk,bus=ahci.0 > > => scsi bind > => dm tree > Class Index Probed Driver Name > ----------------------------------------------------------- > root 0 [ + ] root_driver root_driver > pci 0 [ + ] pci_generic_ecam |-- pcie@10000000 > pci_generi 0 [ ] pci_generic_drv | |-- pci_0:0.0 > ahci 0 [ + ] ahci_pci | `-- ahci_pci > scsi 0 [ + ] ahci_scsi | `-- ahci_scsi > blk 0 [ + ] scsi_blk | |-- > ahci_scsi.id0lun0 > partition 0 [ + ] blk_partition | | |-- > ahci_scsi.id0lun0:1 > partition 1 [ + ] blk_partition | | `-- > ahci_scsi.id0lun0:15 > bootdev 2 [ ] scsi_bootdev | `-- > ahci_scsi.id0lun0.bootdev > => unbind blk 0 > => dm tree > Class Index Probed Driver Name > ----------------------------------------------------------- > root 0 [ + ] root_driver root_driver > pci 0 [ + ] pci_generic_ecam |-- pcie@10000000 > pci_generi 0 [ ] pci_generic_drv | |-- pci_0:0.0 > ahci 0 [ + ] ahci_pci | `-- ahci_pci > scsi 0 [ + ] ahci_scsi | `-- ahci_scsi > bootdev 2 [ ] scsi_bootdev | `-- > ahci_scsi.id0lun0.bootdev > => bind scsi 0 scsi_blk > => dm tree > Class Index Probed Driver Name > ----------------------------------------------------------- > root 0 [ + ] root_driver root_driver > pci 0 [ + ] pci_generic_ecam |-- pcie@10000000 > pci_generi 0 [ ] pci_generic_drv | |-- pci_0:0.0 > ahci 0 [ + ] ahci_pci | `-- ahci_pci > scsi 0 [ + ] ahci_scsi | `-- ahci_scsi > bootdev 2 [ ] scsi_bootdev | |-- > ahci_scsi.id0lun0.bootdev > blk 0 [ ] scsi_blk | `-- scsi_blk > => part list scsi 0 > dev_get_uclass_plat: null device > "Synchronous Abort" handler, esr 0x96000004, far 0xd503201f14000072 > elr: 000000000003392c lr : 0000000000033924 (reloc) > elr: 000000007ff1492c lr : 000000007ff14924 > x0 : d503201f1400000a x1 : 0000000000000000 > x2 : 0000000000000090 x3 : 0000000000000013 > x4 : 000000007eda0419 x5 : 0000000000000020 > x6 : 00000000ffffffd0 x7 : 000000007eda06b0 > x8 : 0000000000000010 x9 : 0000000000000000 > x10: 0000000000000006 x11: 000000000001869f > x12: 0000000000000016 x13: 0000000000000004 > x14: 0000000000000000 x15: 000000007eda073c > x16: 000000007ff2547c x17: 0000000000000000 > x18: 000000007eea0db0 x19: 0000000000000000 > x20: 0000000000000000 x21: 0000000000000001 > x22: 0000000000000000 x23: 000000007eda0740 > x24: 0000000000000000 x25: 0000000000000000 > x26: 0000000000000000 x27: 0000000000000000 > x28: 0000000000000000 x29: 000000007eda06d0 > > Code: aa0303f7 94000287 aa0003f4 f9400260 (f9403418) > Resetting CPU ... > > The crash occurs in blk_read(). blk_read() does not check if desc == NULL. > > I would have expected "bind scsi 0 scsi_blk" to create a valid state > where the platform data is set up. > > Best regards > > Heinrich
I am not sure what 'scsi bind' does. But binding a blk device needs to be done by its parent device. I suspect the 'bind' command does not know how to set up things correctly. See for example blk_create_device() which does quite a lot of setup. What are you trying to fix / do? Regards, Simon