Morning all, and welcome to live text coverage of free practice two ahead of the Malaysian GP in Sepang.

I'll be back tomorrow at 05:00 UK time for the final free practice, and then at 08:00 for qualifying. You can join me then, and in the meantime you can also

The final top 10: Hamilton, Schumacher, Button, Rosberg, Ricciardo, Alonso, Webber, Vergne, Grosjean, Vettel

Karthikeyan is able to continue - and meanwhile the rest of the drivers are wrapping up their runs.

SESSION OVER! And just as we see that Karthikeyan wobbles going into the final hairpin.

Schumacher, Grosjean, Hulkenberg, Di Resta and Raikkonen in the pits. Everyone else finishing up on track.

Hamilton wobbles at turn 14 - I'm not sure the medium rubber tyres will last too long in the race. Drivers at the front may need to make some early pit stops on Sunday.

Glock 20th, 3.5 seconds adrift of Hamilton's mark. A good couple of seconds clear of HRT.

Replays show a bit of bodywork breaking off Charles Pic's Marussia and flying into the air. He's continuing on.

McLaren tell Hamilton that there is time to be gained inthe middle sector. He's run a little more erratically than Button on the longer run, and his engineers tell him there's three tenths of a second to be found in the middle of the lap.

Correction - it as a brief visit to the pits for Alonso, but he did find time to switch to medium tyres.

Vettel only coming out now; that doesn't leave him very long. Alonso dives into the pits, but comes straight back out to continue.

Mind you, that little hiccup cost Hamilton around five seconds as he crosses in a 1:49.2.

Hamilton runs wide on the medium tyres at turn 7, but he's able to keep the car on a strip of tarmac next to the kerb and carry on.

Into the final 10 minutes - but I suspect we've seen all the action we're going to see on the timesheets - it's all about the longer runs now.

Raikkonen touring in the 1:44s as well - there so many teams with a shout in this race, it could be a very compeititve weekend.

The two Red Bulls have stayed in the garage, with Webber popping his head outside only now.

Button is in the 1:44s - and running on mediums, presumably as he will be in his first stint after on the race day after qualifying.

Alonso in the high 1:43s. Is he fueled differently from the rest or is the Ferrari a bit quicker in race mode than in qualifying?

Top 10 with 15 minutes to go: Hamilton, Schumacher, Button, Rosberg, Ricciardo, Alonso, Webber, Vergne, Grosjean, Vettel

Rosberg puts in a 1:45.3 - that's a little bit down on Webber. Have the Mercedes got race pace?