Hi
I am trying to use the linux qnx6 module to mount a QNX6 filesystem partition from an SSD onto a linux host. I am able to mount the partition, however any file > 2GB get truncated (or corrupted?) to 2GB when read from the mountpoint.
Questions - Is there a limitation on maximum file size that the module supports? I have tried formatting the QNX6 partition to use 1K, 4K, and 16K block size. The linux module could only mount ones with 1K & 4K bs. However, both cannot read files >2GB without corruption. 16K did not mount — “mount: /mnt/qnx6_16kbs: wrong fs type, bad option, bad superblock on /dev/nvme1n3p2, missing codepage or helper program, or other error.” Is there a limitation on block size supported by this module?
I browsed the kernel source code to look for any such limitations, but I could not find any. I want to patch the module to add support for files >2GB. Can you please provide some inputs that will help me find the appropriate part of the code?
$ modinfo qnx6 filename: /lib/modules/6.8.0-45-generic/kernel/fs/qnx6/qnx6.ko license: GPL alias: fs-qnx6 srcversion: B81F3D9620B1753DF4431D7 depends: retpoline: Y intree: Y name: qnx6 vermagic: 6.8.0-45-generic SMP preempt mod_unload modversions sig_id: PKCS#7 signer: Build time autogenerated kernel key sig_key: 03:0B:6C:98:F4:46:33:57:AA:65:3F:5B:DF:E4:5A:02:84:DF:3A:24 sig_hashalgo: sha512 signature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
Thanks!
- Richa