I've an emachines®/acer® EL1210-09 (Advance Micro Devices Inc. Athlon LE-1620 (P/N ADH1620IAA5DH); nVIDIA® nForce® 780a SLI with planar C77 a2 GPU; nVIDIA® GF119 a1 GPU on PCIe 2.0 x16 slot). The system DMesg predictably detects no EISA resources on probing platform eisa.0, so EISA.c and related headers can be compiled as a module with no effect on my system's kernel initialization. AFAIK, Intel PCI has replaced EISA on all x86 and x86_64 systems built after 2000. The following redact from /var/log/dmesg.0 on 17 July 2021 illustrates typical info:
[ 0.000000] kernel: Linux version 5.8.0-59-generic (buildd@lcy01-amd64-022) (gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #66~20.04.1-Ubuntu SMP Thu Jun 17 11:14:10 UTC 2021 (Ubuntu 5.8.0-59.66~20.04.1-generic 5.8.18) [ 0.000000] kernel: Command line: BOOT_IMAGE=/vmlinuz-5.8.0-59-generic root=UUID=c4248af1-a4cf-49a2-ba18-4de2c65c815c ro acpi_force_32bit_fadt_addr acpi_rev_override check_enable_amd_mmconf pcie_bus_tune=off pcie_aspm=off pci_ports=native intremap=off agp=off nohugeiomap parport=0 hashdist=0 ... [ 0.212298] kernel: EISA bus registered ... [ 1.006643] kernel: platform eisa.0: Probing EISA bus 0 [ 1.006715] kernel: platform eisa.0: EISA: Cannot allocate resource for mainboard [ 1.006779] kernel: platform eisa.0: Cannot allocate resource for EISA slot 1 [ 1.006855] kernel: platform eisa.0: Cannot allocate resource for EISA slot 8 [ 1.006917] kernel: platform eisa.0: EISA: Detected 0 cards I concur on the feasibility of offloading EISA from Kernel core and building a Module EISA.ko. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1543919 Title: Remove EISA support from main kernel image and make it M (modular) Status in linux package in Ubuntu: Triaged Bug description: (This is a sort of RfC. ) I have a PC that still has the good old PCI ports, but I am 100% sure that the active use of EISA dates back yet more 10 years. In other words, boards that _only_ support EISA date back 25 years now, while those that provide *one* EISA slot date back roughly 15 years (one of the Elitegroup K7 series comes to mind, from about 2001/02). So the EISA support *should* be provided, as we should even support ancient hardware (Linux principle :)) However, why the EISA support is *compiled in* is beyond me. For instance, it creates lots of totally unnecessary noise in dmesg: [ 0.080000] EISA bus registered [ 1.598316] platform eisa.0: Probing EISA bus 0 [ 1.598345] platform eisa.0: Cannot allocate resource for EISA slot 1 (repeated 10 times, i=i+1) [ 1.598368] platform eisa.0: EISA: Detected 0 cards For a 1997 mainboard, this would make perfect sense. But it is very probable that said mainboard would require linux-image-extra nonetheless to support some days-of-yore chipset. So why not leave it as a *module*, while removing its support from main kernel image once and for all? Your turn. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
