Portál AbcLinuxu, 14. srpna 2025 12:13
total used free shared buffers cached Mem: 774960 559628 215332 0 48056 319524 -/+ buffers/cache: 192048 582912 Swap: 337356 0 337356
Mar 26 17:50:25 localhost kernel: ------------[ cut here ]------------ Mar 26 17:50:25 localhost kernel: kernel BUG at mm/vmscan.c:563! Mar 26 17:50:25 localhost kernel: invalid operand: 0000 [#1] Mar 26 17:50:25 localhost kernel: PREEMPT Mar 26 17:50:25 localhost kernel: Modules linked in: it87 eeprom lm90 i2c_sensor i2c_i Mar 26 17:50:25 localhost kernel: CPU: 0 Mar 26 17:50:25 localhost kernel: EIP: 0060:[shrink_cache+143/880] Tainted: P Mar 26 17:50:25 localhost kernel: EIP: 0060:[<>] Tainted: P VLI Mar 26 17:50:25 localhost kernel: EFLAGS: 00010046 (2.6.11-gentoo-r4) Mar 26 17:50:25 localhost kernel: EIP is at shrink_cache+0x8f/0x370 Mar 26 17:50:25 localhost kernel: eax: 00000000 ebx: c0429964 ecx: c14003b8 edx: Mar 26 17:50:25 localhost kernel: esi: 0000000e edi: c0429a3c ebp: 0000000d esp: Mar 26 17:50:25 localhost kernel: ds: 007b es: 007b ss: 0068 Mar 26 17:50:25 localhost kernel: Process kswapd0 (pid: 177, threadinfo=efe86000 task= Mar 26 17:50:25 localhost kernel: Stack: 00000000 efe86ea4 efe86ea4 efe86000 00000020 Mar 26 17:50:25 localhost kernel: 00000001 c1473da0 c148f400 c1456d40 c1497c60 Mar 26 17:50:25 localhost kernel: c1460940 c14695a0 c14674e0 c14695e0 c143c4c0 Mar 26 17:50:25 localhost kernel: Call Trace:
CONFIG_NOHIGHMEM: If you are compiling a kernel which will never run on a machine with more than 1 Gigabyte total physical RAM, answer "off" here (default choice and suitable for most users). This will result in a "3GB/1GB" split: 3GB are mapped so that each process sees a 3GB virtual memory space and the remaining part of the 4GB virtual memory space is used by the kernel to permanently map as much physical memory as possible.
Some area of memory is reserved for storing several kernel data structures that store information about the memory map and page tables. This on x86 is 128 MB. Hence, of the 1 GB physical memory the kernel can access, 128MB is reserved. This means that the kernel virtual address in this 128 MB is not mapped to physical memory. This leaves a maximum of 896 MB for ZONE_NORMAL. So, even if one has 1 GB of physical RAM, just 896 MB will be actually available.Nicmene to byl jenom napad, co vyzkouset, IMHO je to opravdu bug.
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