I get the negative time difference on 2.6.17.14 kernel.org, 2.6.18.8 kernel.org and 2.6.18-92.el5 CentOS.
My system is unusable with these three kernels, when I use the ide_generic. Disc throughput ~3MB/s I/O wait time at 100%.
No problems in ahci and libata with 2.6.18-92.el5.
I was not able to provoke a negative time difference with kernels 2.6.20, 2.6.21, 2.6.24, 2.6.27 and 2.6.8.
I get the negative time difference on 2.6.17.14 kernel.org, 2.6.18.8 kernel.org and 2.6.18-92.el5 CentOS.
My system is unusable with these three kernels, when I use the ide_generic. Disc throughput ~3MB/s I/O wait time at 100%.
No problems in ahci and libata with 2.6.18-92.el5.
I was not able to provoke a negative time difference with kernels 2.6.20, 2.6.21, 2.6.24, 2.6.27 and 2.6.8.