Between versions 0.1.29 and 0.2.1 changes to portage-utils' qsearch prevent it from working when PORTDIR is a readonly filesystem. In my case, I have multiple machines using the same NFS-mounted PORTDIR. After upgrading portage-utils to 0.2.1 when I try to use qsearch: WEB-GENWK01 ~ # q -r && qsearch beans search: Updating ebuild metacache ... search: initialize_flat(): opening '/usr/portage/metadata/cache/.metadata.x' failed: Read-only file system Line 676 of main.c seems to be the culprit, but I'm not familiar enough with the codebase to change it without knowing why it's there. if ((fp = fopen(cache_file, "w")) == NULL) Reproducible: Always
$ strace q -r execve("/usr/bin/q", ["q", "-r"], [/* 27 vars */]) = 0 brk(0) = 0x1adc000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f63265a6000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f63265a5000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=43880, ...}) = 0 mmap(NULL, 43880, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f632659a000 close(3) = 0 open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@\353\1\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1399984, ...}) = 0 mmap(NULL, 3508264, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6326032000 mprotect(0x7f6326181000, 2097152, PROT_NONE) = 0 mmap(0x7f6326381000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14f000) = 0x7f6326381000 mmap(0x7f6326386000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f6326386000 close(3) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6326599000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6326598000 arch_prctl(ARCH_SET_FS, 0x7f63265986f0) = 0 mprotect(0x7f6326381000, 16384, PROT_READ) = 0 mprotect(0x628000, 4096, PROT_READ) = 0 mprotect(0x7f63265a7000, 4096, PROT_READ) = 0 munmap(0x7f632659a000, 43880) = 0 fstat(1, {st_mode=S_IFREG|0644, st_size=1595, ...}) = 0 ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fff638344d0) = -1 ENOTTY (Inappropriate ioctl for device) brk(0) = 0x1adc000 brk(0x1afd000) = 0x1afd000 readlink("/etc/make.profile", "../usr/portage/profiles/default/linux/amd64/10.0", 4095) = 48 open("/etc/../usr/portage/profiles/default/linux/amd64/10.0/make.defaults", O_RDONLY) = -1 ENOENT (No such file or directory) stat("/etc/../usr/portage/profiles/default/linux/amd64/10.0/parent", {st_mode=S_IFREG|0644, st_size=29, ...}) = 0 open("/etc/../usr/portage/profiles/default/linux/amd64/10.0/parent", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=29, ...}) = 0 fstat(3, {st_mode=S_IFREG|0644, st_size=29, ...}) = 0 mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6326558000 read(3, "..\n../../../../releases/10.0\n", 262144) = 29 close(3) = 0 munmap(0x7f6326558000, 262144) = 0 open("/etc/../usr/portage/profiles/default/linux/amd64/10.0/..\n../../../../releases/10.0/make.defaults", O_RDONLY) = -1 ENOENT (No such file or directory) stat("/etc/../usr/portage/profiles/default/linux/amd64/10.0/..\n../../../../releases/10.0/parent", 0x7fff63834470) = -1 ENOENT (No such file or directory) open("/etc/make.globals", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=3951, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f63265a4000 read(3, "# Copyright 1999-2006 Gentoo Fou"..., 4096) = 3951 read(3, "", 4096) = 0 close(3) = 0 munmap(0x7f63265a4000, 4096) = 0 open("/etc/make.conf", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=215, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f63265a4000 read(3, "CFLAGS=\"-march=native -O2 -pipe\""..., 4096) = 215 read(3, "", 4096) = 0 close(3) = 0 munmap(0x7f63265a4000, 4096) = 0 chdir("/usr/portage") = 0 unlink(".ebuild.x") = -1 EROFS (Read-only file system) chdir("/usr/portage") = 0 stat(".ebuild.x", {st_mode=S_IFREG|0644, st_size=1226001, ...}) = 0 access(".ebuild.x", R_OK) = 0 close(2) = 0 exit_group(0) = ?
This appears fixed in app-portage/portage-utils-0.3.1 (currently ~amd64).
