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Groups > linux.debian.kernel > #64399
| From | Anton Ivanov <anton.ivanov@kot-begemot.co.uk> |
|---|---|
| Newsgroups | linux.debian.bugs.dist, linux.debian.kernel |
| Subject | Bug#931500: Acknowledgement (linux-image-4.19.0-5-amd64: kernel deadlock with autofs) |
| Date | 2019-07-08 13:40 +0200 |
| Message-ID | <yhA9X-63s-7@gated-at.bofh.it> (permalink) |
| References | <ygYem-6V-1@gated-at.bofh.it> <yhA9X-63s-9@gated-at.bofh.it> <ygYem-6V-1@gated-at.bofh.it> <yhA9X-63s-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Cross-posted to 2 groups.
There are clearly some issues with nfs across an autofs mount (maybe for hard mounts as well), so this may warrant an upgrade. Example test. Run make -j 12 ; make clean in a loop on an nfs mounted openwrt tree until it fails (usually 2-3 iterations). State on the client ls -laF /var/autofs/local/src/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_tiny/linux-4.14.125/arch/mips/include/generated/uapi/asm total 8 drwxr-xr-x 2 anivanov anivanov 4096 Jul 8 11:40 ./ drwxr-xr-x 3 anivanov anivanov 4096 Jul 8 11:40 ../ State as seen on the server (mounted via nfs across localhost): ls -laF /var/autofs/local/src/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_tiny/linux-4.14.125/arch/mips/include/generated/uapi/asm total 12 drwxr-xr-x 2 anivanov anivanov 4096 Jul 8 11:40 ./ drwxr-xr-x 3 anivanov anivanov 4096 Jul 8 11:40 ../ -rw-r--r-- 1 anivanov anivanov 32 Jul 8 11:40 ipcbuf.h State on the filesystem: ls -laF /exports/work/src/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_tiny/linux-4.14.125/arch/mips/include/generated/uapi/asm total 12 drwxr-xr-x 2 anivanov anivanov 4096 Jul 8 11:40 ./ drwxr-xr-x 3 anivanov anivanov 4096 Jul 8 11:40 ../ -rw-r--r-- 1 anivanov anivanov 32 Jul 8 11:40 ipcbuf.h So actually this looks like the caching on NFS is royally fubar -- Anton R. Ivanov https://www.kot-begemot.co.uk/
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Bug#931500: Acknowledgement (linux-image-4.19.0-5-amd64: kernel deadlock with autofs) Anton Ivanov <anton.ivanov@kot-begemot.co.uk> - 2019-07-08 13:40 +0200
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