Hello,
On 28.07.2017 20:08, Steven Harp wrote:
Observed a problem testing lwip under seL4 (run/lwip). This succeeds with kernels okl4, foc, and nova, but under seL4 there are complaints from acpi_drv (see below). The "Error: I/O memory [1ffe1000,1ffe2000) not available" seems most concerning.
Build architecture is x86_32, relying on drivers dde_ipxe, testing in qemu on Xenial. Theories / workarounds (seL4)?
yes. Try to change the memory for Qemu in tool/run/power_on/qemu from 512M to something else, e.g. 511M. This workaround should help.
We have seen this already some weeks ago and analyzed it. I turns out that the seL4 kernel memory management and the physical memory location of some ACPI tables collide in an unfortunate way. (seL4 kernel version 3.2.0 as used by Genode/seL4 in 17.05 release respectively on current master)
Since we were already in progress of upgrading the used kernel to seL4 5.2.0, we decided not to fix it (by building a kernel patch against 3.2.0)
With the update to seL4 kernel 5.2.0 (currently on staging for testing and scheduled for 17.08 release), the issue went away.
Cheers,
Alex.
// Steve
[init -> nic_drv] --- iPXE NIC driver started --- [init -> nic_drv] -- init iPXE NIC [init -> acpi_drv] Error: ROM-session creation failed (ram_quota=6144, cap_quota=3, label="platform_info") [init -> acpi_drv] Error: Could not open ROM session for "platform_info" [init] child "timer" announces service "Timer" [init] child "acpi_report_rom" announces service "Report" Warning: void Genode::Rpc_cap_factory::free(Genode::Native_capability) not implemented - resources leaked: 0x10 [init] child "acpi_report_rom" announces service "ROM" Error: I/O memory [1ffe1000,1ffe2000) not available Error: Local MMIO mapping failed! [init -> acpi_drv] Error: IO_MEM-session creation failed (cap_quota=3, ram_quota=6K, base=0x1ffe1000, size=0x1000, wc=no) [init -> acpi_drv] Warning: 1 dangling allocation at allocator destruction time Warning: unmapping of managed dataspaces not yet supported [init -> acpi_drv] Error: Unknown exception occured - failure [init -> acpi_drv] Error: __cxa_guard_abort called Kernel: Thread 'ep' died because of an uncaught exception [init -> acpi_drv] Error: Uncaught exception of type 'Genode::Service_denied' [init -> acpi_drv] Warning: abort called - thread: ep [init] child "acpi_drv" exited with exit value 1 Error: Test execution timed out Makefile:309: recipe for target 'run/lwip' failed
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