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new-platform-econet-jun4
openwrt_mitrastar/target/linux/uml/config-6.12
Christian Lamparter 67e41d8a34 uml: disable kmod-8250-serial 
The driver tries to access ioports (0x2f9!!) which UML doesn't have.
This causes lots of warnings to appear on boot:

| WARNING: CPU: 0 PID: 1 at lib/logic_iomem.c:188 serial8250_config_port+0x20a/0x1260
| Invalid writeqb of 0xff at address 2f9
| Modules linked in:
| CPU: 0 UID: 0 PID: 1 Comm: swapper Tainted: G        W          6.12.25 #0
| Tainted: [W]=WARN
| Stack:
| Call Trace:
|  [<60001000>] ? set_reset_devices+0x0/0x16
|  [<60452cba>] ? serial8250_config_port+0x20a/0x1260
|  [<6071e91f>] ? dump_stack_lvl+0x55/0x71
|  [<606e127c>] ? _printk+0x0/0x4f
|  [<60044bbb>] ? __warn+0x11b/0x120
|  [<6003b5d0>] ? um_set_signals+0x0/0x40
|  [<606de721>] ? warn_slowpath_fmt+0x81/0x8c
|  [<606de6a0>] ? warn_slowpath_fmt+0x0/0x8c
|  [<60452cba>] ? serial8250_config_port+0x20a/0x1260

(they are even recursive!)

Now, the situation gets more confusing. Because from what I can tell,
this was seemingly done intenionally. Upstream patches in related areas:

|commit ddd268c42871b78c75e12a5c28207fb481138f41
|Author: Niklas Schnelle <schnelle@linux.ibm.com>
|Date:   Wed Apr 3 14:43:00 2024 +0200
|
|    um: Select HAS_IOREMAP for UML_IOMEM_EMULATION
|
|    In a future patch HAS_IOPORT=n will disable inb()/outb() and friends at
|    compile time. UML supports these via its UML_IOMEM_EMULATION so let that
|    select HAS_IOPORT and also reflect this in NO_IOPORT_MAP.

hint that there's ongoing work in this area. But unfortunately, this future
hasn't arrived yet. Once this future arrives, please nuke this patch.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2025-05-28 18:22:41 +02:00

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CONFIG_3_LEVEL_PGTABLES=y
CONFIG_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_BLK_DEV_COW_COMMON=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_UBD=y
CONFIG_BLK_DEV_UBD_SYNC=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BUFFER_HEAD=y
CONFIG_CDROM=y
# CONFIG_COMMON_CLK is not set
CONFIG_COMPACT_UNEVICTABLE_DEFAULT=1
# CONFIG_COMPAT_32BIT_TIME is not set
CONFIG_CON_CHAN="xterm"
CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
CONFIG_CPU_MITIGATIONS=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_CRC16=y
CONFIG_CRYPTO_CRC32=y
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_LIB_GF128MUL=y
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
CONFIG_CRYPTO_LIB_SHA1=y
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_SHA1=y
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_DEBUG_INFO is not set
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DNOTIFY=y
# CONFIG_EARLY_PRINTK is not set
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_EXT4_FS=y
CONFIG_F2FS_FS=y
CONFIG_FAILOVER=y
CONFIG_FORCE_NR_CPUS=y
CONFIG_FS_IOMAP=y
CONFIG_FS_MBCACHE=y
CONFIG_FUNCTION_ALIGNMENT=0
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_FW_LOADER_SYSFS=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CPU=y
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GPIO_CDEV=y
CONFIG_HOSTFS=y
CONFIG_HVC_DRIVER=y
CONFIG_HW_RANDOM=y
CONFIG_HZ_PERIODIC=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_INIT_ENV_ARG_LIMIT=128
CONFIG_IRQ_WORK=y
CONFIG_ISO9660_FS=y
CONFIG_JBD2=y
# CONFIG_JFFS2_FS is not set
CONFIG_KALLSYMS=y
CONFIG_KERNEL_STACK_ORDER=2
CONFIG_LD_SCRIPT_DYN_RPATH=y
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_MATOM is not set
CONFIG_MAY_HAVE_RUNTIME_DEPS=y
CONFIG_MCONSOLE=y
# CONFIG_MCORE2 is not set
CONFIG_MIGRATION=y
# CONFIG_MK8 is not set
# CONFIG_MMAPPER is not set
CONFIG_MMU_LAZY_TLB_REFCOUNT=y
CONFIG_MODULES_USE_ELF_RELA=y
# CONFIG_MPSC is not set
CONFIG_NAMESPACES=y
CONFIG_NEED_PER_CPU_KM=y
CONFIG_NET_EGRESS=y
CONFIG_NET_FAILOVER=y
CONFIG_NET_INGRESS=y
# CONFIG_NET_NS is not set
CONFIG_NET_XGRESS=y
CONFIG_NLS=y
CONFIG_NO_DMA=y
CONFIG_NO_IOMEM=y
CONFIG_NO_IOPORT_MAP=y
CONFIG_NR_CPUS=1
# CONFIG_NSM is not set
CONFIG_NULL_CHAN=y
# CONFIG_OF is not set
CONFIG_PAGE_POOL=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAHOLE_HAS_LANG_EXCLUDE=y
CONFIG_PGTABLE_LEVELS=3
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_PORT_CHAN=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
CONFIG_PTY_CHAN=y
CONFIG_RANDSTRUCT_NONE=y
CONFIG_RD_BZIP2=y
CONFIG_RD_GZIP=y
CONFIG_RELAY=y
# CONFIG_SERIAL_8250 is not set
CONFIG_SG_POOL=y
CONFIG_SOFT_WATCHDOG=m
CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
CONFIG_SSL=y
CONFIG_SSL_CHAN="pty"
CONFIG_STACKTRACE=y
CONFIG_STDERR_CONSOLE=y
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_TINY_SRCU=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_TTY_CHAN=y
CONFIG_UML=y
CONFIG_UML_NET=y
CONFIG_UML_NET_DAEMON=y
CONFIG_UML_NET_DAEMON_DEFAULT_SOCK="/tmp/uml.ctl"
CONFIG_UML_NET_DETERMINISTIC_MAC=y
CONFIG_UML_NET_ETHERTAP=y
CONFIG_UML_NET_MCAST=y
CONFIG_UML_NET_SLIP=y
CONFIG_UML_NET_SLIRP=y
CONFIG_UML_NET_TUNTAP=y
# CONFIG_UML_NET_VDE is not set
CONFIG_UML_NET_VECTOR=y
# CONFIG_UML_PCI_OVER_VIRTIO is not set
CONFIG_UML_RANDOM=y
CONFIG_UML_TIME_TRAVEL_SUPPORT=y
# CONFIG_UML_WATCHDOG is not set
CONFIG_UML_X86=y
# CONFIG_USER_NS is not set
CONFIG_VIRTIO=y
CONFIG_VIRTIO_ANCHOR=y
CONFIG_VIRTIO_BLK=y
CONFIG_VIRTIO_CONSOLE=y
# CONFIG_VIRTIO_DEBUG is not set
CONFIG_VIRTIO_NET=y
CONFIG_VIRTIO_UML=y
CONFIG_VMAP_STACK=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_WATCHDOG_CORE=y
CONFIG_X86_64=y
CONFIG_X86_CMOV=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_HAVE_PAE=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_TSC=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_XTERM_CHAN=y
CONFIG_XTERM_CHAN_DEFAULT_EMULATOR="xterm"
CONFIG_ZLIB_INFLATE=y
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